Github doesn't remove Unicode letters from header slugs apparently

author: Marshall Lochbaum <mwlochbaum@gmail.com> 2022-01-24 18:12:13 -0500
committer: Marshall Lochbaum <mwlochbaum@gmail.com> 2022-01-24 18:13:16 -0500
commit: 3b6599b12470fe9b1321111d31c34685ffd5db52 (patch)
tree: c2b5aa59341dbfec7868911ff6bf505716ec85a9
parent: c9bc3e80280fd8a38f6297de80196dcbff9c28d9 (diff)
74 files changed, 135 insertions, 135 deletions
diff --git a/docs/commentary/problems.html b/docs/commentary/problems.html
index 34dd001c..8b9f0955 100644
--- a/docs/commentary/problems.html
+++ b/docs/commentary/problems.html
@@ -113,7 +113,7 @@
 <p>Scan moves along the array so that it uses results as left arguments, which is opposite to the usual right-to-left order of evaluation. But I think this is still better than scanning the array in reverse. You can always use Swap on the operand, or recover the APL scan ordering by doing a Reduce-Each on Prefixes.</p>
 <h3 id="only-errors-in-functions-can-be-caught"><a class="header" href="#only-errors-in-functions-can-be-caught">Only errors in functions can be caught</a></h3>
 <p>The modifier <code><span class='Modifier2'>⎊</span></code> allows errors in a function to be caught, but a more natural unit for this is the block (scope, really). However, catching errors shouldn't be common in typical code, in the sense that an application should have only a few instances of <code><span class='Modifier2'>⎊</span></code>. Ordinary testing and control flow should be preferred instead.</p>
-<h3 id="special-names-other-than--cant-be-written-as-modifiers"><a class="header" href="#special-names-other-than--cant-be-written-as-modifiers">Special names other than 𝕣 can't be written as modifiers</a></h3>
+<h3 id="special-names-other-than-𝕣-cant-be-written-as-modifiers"><a class="header" href="#special-names-other-than-𝕣-cant-be-written-as-modifiers">Special names other than 𝕣 can't be written as modifiers</a></h3>
 <p>I decided that it was better to allow <code><span class='Value'>𝕨</span><span class='Modifier2'>_m_</span><span class='Value'>𝕩</span></code> to work with no spaces than to allow <code><span class='Modifier2'>_</span><span class='Value'>𝕩</span></code> to be a modifier, and this rule also helps keep tokenization simple. But to apply <code><span class='Value'>𝕩</span></code> as a modifier you have to give it a different name.</p>
 <h3 id="bins-is-inconsistent-with-index-of"><a class="header" href="#bins-is-inconsistent-with-index-of">Bins is inconsistent with Index of</a></h3>
 <p>In Dyalog APL, Interval Index is identical to Index Of if the left argument has no duplicate cells and every right argument cell intolerantly matches a left argument cell. In BQN they're off by one—Bins is one larger. But all the caveats for the Dyalog relation indicate this might not be so fundamental.</p>
diff --git a/docs/help/2-modifierrightoperand.html b/docs/help/2-modifierrightoperand.html
index f7a71bdf..dbe09db1 100644
--- a/docs/help/2-modifierrightoperand.html
+++ b/docs/help/2-modifierrightoperand.html
@@ -4,8 +4,8 @@
   <title>BQN: Mathematical Double-struck G (𝔾)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="mathematical-double-struck-g-"><a class="header" href="#mathematical-double-struck-g-">Mathematical Double-struck G (<code><span class='Function'>𝔾</span></code>)</a></h1>
-<h2 id="-2-modifier-right-operand"><a class="header" href="#-2-modifier-right-operand"><code><span class='Function'>𝔾</span></code>: 2-Modifier Right operand</a></h2>
+<h1 id="mathematical-double-struck-g-𝔾"><a class="header" href="#mathematical-double-struck-g-𝔾">Mathematical Double-struck G (<code><span class='Function'>𝔾</span></code>)</a></h1>
+<h2 id="𝔾-2-modifier-right-operand"><a class="header" href="#𝔾-2-modifier-right-operand"><code><span class='Function'>𝔾</span></code>: 2-Modifier Right operand</a></h2>
 <p>A variable assigned to the right operand of a 2-modifier block. <code><span class='Value'>𝕘</span></code> can be used to access the right operand as a subject.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=NSAre/CdlZh9MyAx">↗️</a><pre>    <span class='Number'>5</span> <span class='Function'>+</span><span class='Brace'>{</span><span class='Value'>𝕘</span><span class='Brace'>}</span><span class='Number'>3</span> <span class='Number'>1</span>
 3
diff --git a/docs/help/absolutevalue_modulus.html b/docs/help/absolutevalue_modulus.html
index 40907de8..ff360249 100644
--- a/docs/help/absolutevalue_modulus.html
+++ b/docs/help/absolutevalue_modulus.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="pipe-"><a class="header" href="#pipe-">Pipe (<code><span class='Function'>|</span></code>)</a></h1>
-<h2 id="--absolute-value"><a class="header" href="#--absolute-value"><code><span class='Function'>|</span> <span class='Value'>𝕩</span></code>: Absolute Value</a></h2>
+<h2 id="-𝕩-absolute-value"><a class="header" href="#-𝕩-absolute-value"><code><span class='Function'>|</span> <span class='Value'>𝕩</span></code>: Absolute Value</a></h2>
 <p>Absolute Value of <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICB8IMKvMgoKICB8IDHigL8z4oC/wq804oC/Mw==">↗️</a><pre>      <span class='Function'>|</span> <span class='Number'>¯2</span>
@@ -14,7 +14,7 @@
       <span class='Function'>|</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>¯4</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 1 3 4 3 ⟩
 </pre>
-<h2 id="---modulus"><a class="header" href="#---modulus"><code><span class='Value'>𝕨</span> <span class='Function'>|</span> <span class='Value'>𝕩</span></code>: Modulus</a></h2>
+<h2 id="𝕨--𝕩-modulus"><a class="header" href="#𝕨--𝕩-modulus"><code><span class='Value'>𝕨</span> <span class='Function'>|</span> <span class='Value'>𝕩</span></code>: Modulus</a></h2>
 <p>Remainder of <code><span class='Value'>𝕩</span></code> divided by <code><span class='Value'>𝕨</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIHwgMwoKICAyIHwgM+KAvzTigL/CrzU=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>|</span> <span class='Number'>3</span>
diff --git a/docs/help/after_bind.html b/docs/help/after_bind.html
index 8c7446de..f14f5386 100644
--- a/docs/help/after_bind.html
+++ b/docs/help/after_bind.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="left-multimap-"><a class="header" href="#left-multimap-">Left Multimap (<code><span class='Modifier2'>⟜</span></code>)</a></h1>
-<h2 id="--bind"><a class="header" href="#--bind"><code><span class='Function'>𝔽</span><span class='Modifier2'>⟜</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Bind</a></h2>
+<h2 id="𝔽𝕘-𝕩-bind"><a class="header" href="#𝔽𝕘-𝕩-bind"><code><span class='Function'>𝔽</span><span class='Modifier2'>⟜</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Bind</a></h2>
 <p>Supply <code><span class='Value'>𝕘</span></code> as a right argument to <code><span class='Function'>𝔽</span></code> (<code><span class='Value'>𝕩</span> <span class='Function'>𝔽</span> <span class='Value'>𝕘</span></code>).</p>
 <p><code><span class='Value'>𝕘</span></code> is a constant, <code><span class='Function'>𝔽</span></code> must be dyadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgLeKfnDMgOQoKICAgLSAzIDkKCiAgIDkgLSAz">↗️</a><pre>       <span class='Function'>-</span><span class='Modifier2'>⟜</span><span class='Number'>3</span> <span class='Number'>9</span>
@@ -17,7 +17,7 @@
        <span class='Number'>9</span> <span class='Function'>-</span> <span class='Number'>3</span>
 6
 </pre>
-<h2 id="--after"><a class="header" href="#--after"><code><span class='Function'>𝔽</span><span class='Modifier2'>⟜</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: After</a></h2>
+<h2 id="𝔽𝔾-𝕩-after"><a class="header" href="#𝔽𝔾-𝕩-after"><code><span class='Function'>𝔽</span><span class='Modifier2'>⟜</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: After</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕩</span></code>, and supply it as a right argument to <code><span class='Function'>𝔽</span></code> (<code><span class='Value'>𝕩</span> <span class='Function'>𝔽</span> <span class='Paren'>(</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span><span class='Paren'>)</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> must be dyadic, <code><span class='Function'>𝔾</span></code> must be monadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgw5fin5wtIDkKCiAgIMOXIC0gOQoKICAgOSDDlyAoLSA5KQ==">↗️</a><pre>       <span class='Function'>×</span><span class='Modifier2'>⟜</span><span class='Function'>-</span> <span class='Number'>9</span>
@@ -29,7 +29,7 @@
        <span class='Number'>9</span> <span class='Function'>×</span> <span class='Paren'>(</span><span class='Function'>-</span> <span class='Number'>9</span><span class='Paren'>)</span>
 ¯81
 </pre>
-<h2 id="---dyadic-after"><a class="header" href="#---dyadic-after"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⟜</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic After</a></h2>
+<h2 id="𝕨-𝔽𝔾-𝕩-dyadic-after"><a class="header" href="#𝕨-𝔽𝔾-𝕩-dyadic-after"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⟜</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic After</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕩</span></code>, and supply it as a right argument to <code><span class='Function'>𝔽</span></code> (<code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span> <span class='Paren'>(</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span><span class='Paren'>)</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> must be dyadic, <code><span class='Function'>𝔾</span></code> must be monadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMiDDl+KfnC0gMQoKICAgMiDDlyAoLSAxKQ==">↗️</a><pre>       <span class='Number'>2</span> <span class='Function'>×</span><span class='Modifier2'>⟜</span><span class='Function'>-</span> <span class='Number'>1</span>
diff --git a/docs/help/assert_assertwithmessage.html b/docs/help/assert_assertwithmessage.html
index 947d33cf..92140c18 100644
--- a/docs/help/assert_assertwithmessage.html
+++ b/docs/help/assert_assertwithmessage.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="exclamation-mark-"><a class="header" href="#exclamation-mark-">Exclamation Mark (<code><span class='Function'>!</span></code>)</a></h1>
-<h2 id="--assert"><a class="header" href="#--assert"><code><span class='Function'>!</span> <span class='Value'>𝕩</span></code>: Assert</a></h2>
+<h2 id="-𝕩-assert"><a class="header" href="#-𝕩-assert"><code><span class='Function'>!</span> <span class='Value'>𝕩</span></code>: Assert</a></h2>
 <p>Throw an error if <code><span class='Value'>𝕩</span></code> is not 1.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgISAxCgogICAhIDIKCiAgICEgImhlbGxvIg==">↗️</a><pre>       <span class='Function'>!</span> <span class='Number'>1</span>
 1
@@ -16,7 +16,7 @@
        <span class='Function'>!</span> <span class='String'>&quot;hello&quot;</span>
 <span class='Error'>Error: hello</span>
 </pre>
-<h2 id="---assert-with-message"><a class="header" href="#---assert-with-message"><code><span class='Value'>𝕨</span> <span class='Function'>!</span> <span class='Value'>𝕩</span></code>: Assert With Message</a></h2>
+<h2 id="𝕨--𝕩-assert-with-message"><a class="header" href="#𝕨--𝕩-assert-with-message"><code><span class='Value'>𝕨</span> <span class='Function'>!</span> <span class='Value'>𝕩</span></code>: Assert With Message</a></h2>
 <p>Throw an error with message <code><span class='Value'>𝕨</span></code> if <code><span class='Value'>𝕩</span></code> is not 1.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgImhpIiAhIDEKCiAgICJ0d28iICEgMgoKICAgImhlbGxvIGVycm9yIiAhICJoZWxsbyI=">↗️</a><pre>       <span class='String'>&quot;hi&quot;</span> <span class='Function'>!</span> <span class='Number'>1</span>
 1
diff --git a/docs/help/atop.html b/docs/help/atop.html
index 62abd9a1..57c7bf3a 100644
--- a/docs/help/atop.html
+++ b/docs/help/atop.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="ring-operator-"><a class="header" href="#ring-operator-">Ring Operator (<code><span class='Modifier2'>∘</span></code>)</a></h1>
-<h2 id="--atop"><a class="header" href="#--atop"><code><span class='Function'>𝔽</span><span class='Modifier2'>∘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Atop</a></h2>
+<h2 id="𝔽𝔾-𝕩-atop"><a class="header" href="#𝔽𝔾-𝕩-atop"><code><span class='Function'>𝔽</span><span class='Modifier2'>∘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Atop</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕩</span></code>, then apply <code><span class='Function'>𝔽</span></code> (<code><span class='Function'>𝔽</span> <span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> and <code><span class='Function'>𝔾</span></code> must be monadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgLeKImC0gNQoKICAgLSAtIDU=">↗️</a><pre>       <span class='Function'>-</span><span class='Modifier2'>∘</span><span class='Function'>-</span> <span class='Number'>5</span>
@@ -14,7 +14,7 @@
        <span class='Function'>-</span> <span class='Function'>-</span> <span class='Number'>5</span>
 5
 </pre>
-<h2 id="---dyadic-atop"><a class="header" href="#---dyadic-atop"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>∘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic Atop</a></h2>
+<h2 id="𝕨-𝔽𝔾-𝕩-dyadic-atop"><a class="header" href="#𝕨-𝔽𝔾-𝕩-dyadic-atop"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>∘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic Atop</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>, then apply <code><span class='Function'>𝔽</span></code> (<code><span class='Function'>𝔽</span> <span class='Paren'>(</span><span class='Value'>𝕨</span> <span class='Function'>𝔾</span> <span class='Value'>𝕩</span><span class='Paren'>)</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> must be monadic, and <code><span class='Function'>𝔾</span></code> must be dyadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSAt4oiYKyAyCgogICAxIC0gKyAyCgogICAtIDEgKyAy">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>-</span><span class='Modifier2'>∘</span><span class='Function'>+</span> <span class='Number'>2</span>
diff --git a/docs/help/before_bind.html b/docs/help/before_bind.html
index e04e11b1..3ae101c6 100644
--- a/docs/help/before_bind.html
+++ b/docs/help/before_bind.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="multimap-"><a class="header" href="#multimap-">Multimap (<code><span class='Modifier2'>⊸</span></code>)</a></h1>
-<h2 id="--bind-left"><a class="header" href="#--bind-left"><code><span class='Value'>𝕗</span><span class='Modifier2'>⊸</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Bind Left</a></h2>
+<h2 id="𝕗𝔾-𝕩-bind-left"><a class="header" href="#𝕗𝔾-𝕩-bind-left"><code><span class='Value'>𝕗</span><span class='Modifier2'>⊸</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Bind Left</a></h2>
 <p>Supply <code><span class='Value'>𝕗</span></code> as a left argument to <code><span class='Function'>𝔾</span></code> (<code><span class='Value'>𝕗</span> <span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>).</p>
 <p><code><span class='Value'>𝕗</span></code> is a constant, <code><span class='Function'>𝔾</span></code> must be dyadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgM+KKuC0gOQoKICAgMyAtIDk=">↗️</a><pre>       <span class='Number'>3</span><span class='Modifier2'>⊸</span><span class='Function'>-</span> <span class='Number'>9</span>
@@ -14,7 +14,7 @@
        <span class='Number'>3</span> <span class='Function'>-</span> <span class='Number'>9</span>
 ¯6
 </pre>
-<h2 id="--before"><a class="header" href="#--before"><code><span class='Function'>𝔽</span><span class='Modifier2'>⊸</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Before</a></h2>
+<h2 id="𝔽𝔾-𝕩-before"><a class="header" href="#𝔽𝔾-𝕩-before"><code><span class='Function'>𝔽</span><span class='Modifier2'>⊸</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Before</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to <code><span class='Value'>𝕩</span></code>, and supply it as a left argument to <code><span class='Function'>𝔾</span></code> (<code><span class='Paren'>(</span><span class='Function'>𝔽</span> <span class='Value'>𝕩</span><span class='Paren'>)</span> <span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> must be monadic, <code><span class='Function'>𝔾</span></code> must be dyadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgLeKKuCsgOQoKICAgLSArIDkKCiAgICgtIDkpICsgOQ==">↗️</a><pre>       <span class='Function'>-</span><span class='Modifier2'>⊸</span><span class='Function'>+</span> <span class='Number'>9</span>
@@ -26,7 +26,7 @@
        <span class='Paren'>(</span><span class='Function'>-</span> <span class='Number'>9</span><span class='Paren'>)</span> <span class='Function'>+</span> <span class='Number'>9</span>
 0
 </pre>
-<h2 id="---dyadic-before"><a class="header" href="#---dyadic-before"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⊸</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic Before</a></h2>
+<h2 id="𝕨-𝔽𝔾-𝕩-dyadic-before"><a class="header" href="#𝕨-𝔽𝔾-𝕩-dyadic-before"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⊸</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic Before</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to <code><span class='Value'>𝕨</span></code>, and supply it as a left argument to <code><span class='Function'>𝔾</span></code> (<code><span class='Paren'>(</span><span class='Function'>𝔽</span> <span class='Value'>𝕨</span><span class='Paren'>)</span> <span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> must be monadic, <code><span class='Function'>𝔾</span></code> must be dyadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMiAt4oq4KyAxCgogICAyIC0gKyAxCgogICAoLSAyKSArIDE=">↗️</a><pre>       <span class='Number'>2</span> <span class='Function'>-</span><span class='Modifier2'>⊸</span><span class='Function'>+</span> <span class='Number'>1</span>
diff --git a/docs/help/catch.html b/docs/help/catch.html
index 446edf64..a5a546fd 100644
--- a/docs/help/catch.html
+++ b/docs/help/catch.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circled-triangle-down-"><a class="header" href="#circled-triangle-down-">Circled Triangle Down (<code><span class='Modifier2'>⎊</span></code>)</a></h1>
-<h2 id="-----catch"><a class="header" href="#-----catch"><code><span class='Function'>𝔽</span><span class='Modifier2'>⎊</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⎊</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Catch</a></h2>
+<h2 id="𝔽𝔾-𝕩-𝕨-𝔽𝔾-𝕩-catch"><a class="header" href="#𝔽𝔾-𝕩-𝕨-𝔽𝔾-𝕩-catch"><code><span class='Function'>𝔽</span><span class='Modifier2'>⎊</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⎊</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Catch</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to the arguments.</p>
 <p>If an error happens when <code><span class='Function'>𝔽</span></code> is applied, cancel its execution, apply <code><span class='Function'>𝔾</span></code> to the arguments and return the results.</p>
 <p>Otherwise, return the results of <code><span class='Function'>𝔽</span></code>.</p>
diff --git a/docs/help/ceiling_maximum.html b/docs/help/ceiling_maximum.html
index 9e5fb5cb..2cff2167 100644
--- a/docs/help/ceiling_maximum.html
+++ b/docs/help/ceiling_maximum.html
@@ -5,13 +5,13 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="left-ceiling-"><a class="header" href="#left-ceiling-">Left Ceiling (<code><span class='Function'>⌈</span></code>)</a></h1>
-<h2 id="--ceiling"><a class="header" href="#--ceiling"><code><span class='Function'>⌈</span> <span class='Value'>𝕩</span></code>: Ceiling</a></h2>
+<h2 id="-𝕩-ceiling"><a class="header" href="#-𝕩-ceiling"><code><span class='Function'>⌈</span> <span class='Value'>𝕩</span></code>: Ceiling</a></h2>
 <p>Round <code><span class='Value'>𝕩</span></code> up.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDijIggMS4y4oC/z4DigL8z4oC/Ny44OQ==">↗️</a><pre>      <span class='Function'>⌈</span> <span class='Number'>1.2</span><span class='Ligature'>‿</span><span class='Number'>π</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>7.89</span>
 ⟨ 2 4 3 8 ⟩
 </pre>
-<h2 id="---maximum"><a class="header" href="#---maximum"><code><span class='Value'>𝕨</span> <span class='Function'>⌈</span> <span class='Value'>𝕩</span></code>: Maximum</a></h2>
+<h2 id="𝕨--𝕩-maximum"><a class="header" href="#𝕨--𝕩-maximum"><code><span class='Value'>𝕨</span> <span class='Function'>⌈</span> <span class='Value'>𝕩</span></code>: Maximum</a></h2>
 <p>Maximum of <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKMiCAyCgogIDLigL8zIOKMiCA04oC/Mg==">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>⌈</span> <span class='Number'>2</span>
diff --git a/docs/help/cells.html b/docs/help/cells.html
index d21fedff..aa8bd55f 100644
--- a/docs/help/cells.html
+++ b/docs/help/cells.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="breve-"><a class="header" href="#breve-">Breve (<code><span class='Modifier'>˘</span></code>)</a></h1>
-<h2 id="-----cells"><a class="header" href="#-----cells"><code><span class='Function'>𝔽</span><span class='Modifier'>˘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˘</span> <span class='Value'>𝕩</span></code>: Cells</a></h2>
+<h2 id="𝔽-𝕩-𝕨-𝔽-𝕩-cells"><a class="header" href="#𝔽-𝕩-𝕨-𝔽-𝕩-cells"><code><span class='Function'>𝔽</span><span class='Modifier'>˘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˘</span> <span class='Value'>𝕩</span></code>: Cells</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to/between the major cells of the arguments. (<code><span class='Function'>𝔽</span><span class='Modifier2'>⎉</span><span class='Number'>¯1</span></code>)</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgYSDihpAgM+KAvzMg4qWKIOKGlTkKCgogICA8y5ggYQoKICAgYSDiiY3LmCBh">↗️</a><pre>       <span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>9</span>
 
diff --git a/docs/help/choose.html b/docs/help/choose.html
index 75fbdcfa..96304e0b 100644
--- a/docs/help/choose.html
+++ b/docs/help/choose.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-with-lower-right-quadrant-"><a class="header" href="#circle-with-lower-right-quadrant-">Circle with Lower Right Quadrant (<code><span class='Modifier2'>◶</span></code>)</a></h1>
-<h2 id="-----choose"><a class="header" href="#-----choose"><code><span class='Function'>𝔽</span><span class='Modifier2'>◶</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>◶</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Choose</a></h2>
+<h2 id="𝔽𝕘-𝕩-𝕨-𝔽𝕘-𝕩-choose"><a class="header" href="#𝔽𝕘-𝕩-𝕨-𝔽𝕘-𝕩-choose"><code><span class='Function'>𝔽</span><span class='Modifier2'>◶</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>◶</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Choose</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to the arguments and pick a function from list <code><span class='Value'>𝕘</span></code>. Apply the picked function to the arguments.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgRiDihpAg4oqi4pe2K+KAvy3igL/Dt+KAv8OXCgogICBGIDAKCiAgIEYgMQoKICAgRiAyCgogICBGIDM=">↗️</a><pre>       <span class='Function'>F</span> <span class='Gets'>←</span> <span class='Function'>⊢</span><span class='Modifier2'>◶</span><span class='Function'>+</span><span class='Ligature'>‿</span><span class='Function'>-</span><span class='Ligature'>‿</span><span class='Function'>÷</span><span class='Ligature'>‿</span><span class='Function'>×</span>
 
diff --git a/docs/help/classify_indexof.html b/docs/help/classify_indexof.html
index 15c01b1d..143393be 100644
--- a/docs/help/classify_indexof.html
+++ b/docs/help/classify_indexof.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="square-original-of-"><a class="header" href="#square-original-of-">Square Original Of (<code><span class='Function'>⊐</span></code>)</a></h1>
-<h2 id="--classify"><a class="header" href="#--classify"><code><span class='Function'>⊐</span> <span class='Value'>𝕩</span></code>: Classify</a></h2>
+<h2 id="-𝕩-classify"><a class="header" href="#-𝕩-classify"><code><span class='Function'>⊐</span> <span class='Value'>𝕩</span></code>: Classify</a></h2>
 <p>First index of each major cell of <code><span class='Value'>𝕩</span></code> in <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oqQIDXigL824oC/MuKAvzLigL814oC/MQoKICAgYSDihpAgM+KAvzMg4qWKIDDigL8x4oC/MuKAvznigL8w4oC/OeKAvzDigL8x4oC/MgoKICAg4oqQIGE=">↗️</a><pre>       <span class='Function'>⊐</span> <span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>1</span>
 ⟨ 0 1 2 2 0 3 ⟩
@@ -15,7 +15,7 @@
        <span class='Function'>⊐</span> <span class='Value'>a</span>
 ⟨ 0 1 0 ⟩
 </pre>
-<h2 id="---index-of"><a class="header" href="#---index-of"><code><span class='Value'>𝕨</span> <span class='Function'>⊐</span> <span class='Value'>𝕩</span></code>: Index Of</a></h2>
+<h2 id="𝕨--𝕩-index-of"><a class="header" href="#𝕨--𝕩-index-of"><code><span class='Value'>𝕨</span> <span class='Function'>⊐</span> <span class='Value'>𝕩</span></code>: Index Of</a></h2>
 <p>First index of each major cell of <code><span class='Value'>𝕩</span></code> in <code><span class='Value'>𝕨</span></code>. Rank of <code><span class='Value'>𝕩</span></code> must be at least cell rank of 𝕨`.</p>
 <p>If a cell is not found in <code><span class='Value'>𝕨</span></code>, that position will contain the length of <code><span class='Value'>𝕨</span></code> (<code><span class='Function'>≠</span><span class='Value'>𝕨</span></code>).</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNeKAvzbigL8y4oC/MuKAvzXigL8xIOKKkCA14oC/MuKAvzHigL82CgogICBiIOKGkCAz4oC/MyDipYogMOKAvzHigL8y4oC/OeKAvzDigL854oC/MOKAvzHigL8yCgogICBiIOKKkCDin6g54oC/MOKAvznin6k=">↗️</a><pre>       <span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>1</span> <span class='Function'>⊐</span> <span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>6</span>
diff --git a/docs/help/conjugate_add.html b/docs/help/conjugate_add.html
index 38085f5c..c70fd1fb 100644
--- a/docs/help/conjugate_add.html
+++ b/docs/help/conjugate_add.html
@@ -5,14 +5,14 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="plus-"><a class="header" href="#plus-">Plus (<code><span class='Function'>+</span></code>)</a></h1>
-<h2 id="--conjugate"><a class="header" href="#--conjugate"><code><span class='Function'>+</span> <span class='Value'>𝕩</span></code>: Conjugate</a></h2>
+<h2 id="-𝕩-conjugate"><a class="header" href="#-𝕩-conjugate"><code><span class='Function'>+</span> <span class='Value'>𝕩</span></code>: Conjugate</a></h2>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICArIDEKCiAgKyDCrzE=">↗️</a><pre>      <span class='Function'>+</span> <span class='Number'>1</span>
 1
 
       <span class='Function'>+</span> <span class='Number'>¯1</span>
 ¯1
 </pre>
-<h2 id="---add"><a class="header" href="#---add"><code><span class='Value'>𝕨</span> <span class='Function'>+</span> <span class='Value'>𝕩</span></code>: Add</a></h2>
+<h2 id="𝕨--𝕩-add"><a class="header" href="#𝕨--𝕩-add"><code><span class='Value'>𝕨</span> <span class='Function'>+</span> <span class='Value'>𝕩</span></code>: Add</a></h2>
 <p><code><span class='Value'>𝕨</span></code> added to <code><span class='Value'>𝕩</span></code>. Either <code><span class='Value'>𝕨</span></code> or <code><span class='Value'>𝕩</span></code> can be a character, and if so, the other has to be an integer.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxICsgMgoKICAxICsgMuKAvzPigL80CgogICdhJyArIDQ=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>+</span> <span class='Number'>2</span>
diff --git a/docs/help/constant.html b/docs/help/constant.html
index 4e1ad74f..7b0017f2 100644
--- a/docs/help/constant.html
+++ b/docs/help/constant.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="dot-above-"><a class="header" href="#dot-above-">Dot Above (<code><span class='Modifier'>˙</span></code>)</a></h1>
-<h2 id="-----constant"><a class="header" href="#-----constant"><code><span class='Function'>𝔽</span><span class='Modifier'>˙</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˙</span> <span class='Value'>𝕩</span></code>: Constant</a></h2>
+<h2 id="𝔽-𝕩-𝕨-𝔽-𝕩-constant"><a class="header" href="#𝔽-𝕩-𝕨-𝔽-𝕩-constant"><code><span class='Function'>𝔽</span><span class='Modifier'>˙</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˙</span> <span class='Value'>𝕩</span></code>: Constant</a></h2>
 <p>Returns a function that will always return <code><span class='Value'>𝕗</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgImhlbGxvIiAoMSDLmSkgMgoKICAgImhlbGxvIiAoe/Cdlagr8J2VqX0gy5kpIDI=">↗️</a><pre>       <span class='String'>&quot;hello&quot;</span> <span class='Paren'>(</span><span class='Number'>1</span> <span class='Modifier'>˙</span><span class='Paren'>)</span> <span class='Number'>2</span>
 1
diff --git a/docs/help/currentfunction.html b/docs/help/currentfunction.html
index d60bd8a5..8aa11806 100644
--- a/docs/help/currentfunction.html
+++ b/docs/help/currentfunction.html
@@ -4,8 +4,8 @@
   <title>BQN: Mathematical Double-struck S (𝕊)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="mathematical-double-struck-s-"><a class="header" href="#mathematical-double-struck-s-">Mathematical Double-struck S (<code><span class='Function'>𝕊</span></code>)</a></h1>
-<h2 id="-current-function"><a class="header" href="#-current-function"><code><span class='Function'>𝕊</span></code>: Current Function</a></h2>
+<h1 id="mathematical-double-struck-s-𝕊"><a class="header" href="#mathematical-double-struck-s-𝕊">Mathematical Double-struck S (<code><span class='Function'>𝕊</span></code>)</a></h1>
+<h2 id="𝕊-current-function"><a class="header" href="#𝕊-current-function"><code><span class='Function'>𝕊</span></code>: Current Function</a></h2>
 <p>A variable assigned to the current function block. <code><span class='Value'>𝕤</span></code> can be used to access the current function block as a subject.</p>
 <p><code><span class='Function'>𝕊</span></code> can be used for recursion.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=RiDihpAge/CdlYogMDogMTsg8J2VqSDDlyDwnZWKIPCdlaktMX0gIyBGYWN0b3JpYWwKRiA1Cgp78J2VpOKAv/CdlaR9NA==">↗️</a><pre>    <span class='Function'>F</span> <span class='Gets'>←</span> <span class='Brace'>{</span><span class='Function'>𝕊</span> <span class='Number'>0</span><span class='Value'>:</span> <span class='Number'>1</span><span class='Value'>;</span> <span class='Value'>𝕩</span> <span class='Function'>×</span> <span class='Function'>𝕊</span> <span class='Value'>𝕩</span><span class='Function'>-</span><span class='Number'>1</span><span class='Brace'>}</span> <span class='Comment'># Factorial
diff --git a/docs/help/currentmodifier.html b/docs/help/currentmodifier.html
index 3fdf1a98..1ee9782b 100644
--- a/docs/help/currentmodifier.html
+++ b/docs/help/currentmodifier.html
@@ -4,8 +4,8 @@
   <title>BQN: Mathematical Double-struck R (𝕣)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="mathematical-double-struck-r-"><a class="header" href="#mathematical-double-struck-r-">Mathematical Double-struck R (<code><span class='Value'>𝕣</span></code>)</a></h1>
-<h2 id="-current-modifier"><a class="header" href="#-current-modifier"><code><span class='Value'>𝕣</span></code>: Current Modifier</a></h2>
+<h1 id="mathematical-double-struck-r-𝕣"><a class="header" href="#mathematical-double-struck-r-𝕣">Mathematical Double-struck R (<code><span class='Value'>𝕣</span></code>)</a></h1>
+<h2 id="𝕣-current-modifier"><a class="header" href="#𝕣-current-modifier"><code><span class='Value'>𝕣</span></code>: Current Modifier</a></h2>
 <p>A variable assigned to the current modifier block. Underscores must be added to the beginning and/or end (<code><span class='Modifier'>_𝕣</span></code>, <code><span class='Modifier2'>_𝕣_</span></code>) to use the modifier with the correct role.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=K3vwnZWj4oqj8J2VqX0gNA==">↗️</a><pre>    <span class='Function'>+</span><span class='Brace'>{</span><span class='Value'>𝕣</span><span class='Function'>⊣</span><span class='Value'>𝕩</span><span class='Brace'>}</span> <span class='Number'>4</span>
 (1-modifier block)
diff --git a/docs/help/deduplicate_find.html b/docs/help/deduplicate_find.html
index 5c05059c..cefe3b8f 100644
--- a/docs/help/deduplicate_find.html
+++ b/docs/help/deduplicate_find.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="epsilon-underbar-"><a class="header" href="#epsilon-underbar-">Epsilon Underbar (<code><span class='Function'>⍷</span></code>)</a></h1>
-<h2 id="--deduplicate"><a class="header" href="#--deduplicate"><code><span class='Function'>⍷</span> <span class='Value'>𝕩</span></code>: Deduplicate</a></h2>
+<h2 id="-𝕩-deduplicate"><a class="header" href="#-𝕩-deduplicate"><code><span class='Function'>⍷</span> <span class='Value'>𝕩</span></code>: Deduplicate</a></h2>
 <p>Unique major cells of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4o23IDTigL814oC/NuKAvzbigL804oC/N+KAvzUKCiAgIGEg4oaQIDPigL8zIOKliiDihpU2CgogICDijbcgYQ==">↗️</a><pre>       <span class='Function'>⍷</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>7</span><span class='Ligature'>‿</span><span class='Number'>5</span>
 ⟨ 4 5 6 7 ⟩
@@ -18,7 +18,7 @@
   3 4 5  
         ┘
 </pre>
-<h2 id="---find"><a class="header" href="#---find"><code><span class='Value'>𝕨</span> <span class='Function'>⍷</span> <span class='Value'>𝕩</span></code>: Find</a></h2>
+<h2 id="𝕨--𝕩-find"><a class="header" href="#𝕨--𝕩-find"><code><span class='Value'>𝕨</span> <span class='Function'>⍷</span> <span class='Value'>𝕩</span></code>: Find</a></h2>
 <p>Mark the top left location of the occurrences of <code><span class='Value'>𝕨</span></code> in <code><span class='Value'>𝕩</span></code> with a 1, and other locations with 0.</p>
 <p>Result is the same shape as <code><span class='Paren'>(</span><span class='Function'>≢</span><span class='Value'>𝕨</span><span class='Paren'>)</span><span class='Function'>↕</span><span class='Value'>x</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgInN0cmluZyIg4o23ICJzdWJzdHJpbmciCgogICAibG9vb29vb25nIiDijbcgInNob3J0IgoKICAgYiDihpAgNyAoNHzii4bLnCnijJzil4vihpUgOQoKICAgYyDihpAgKDDigL8z4oC/MOKJjTDigL8x4oC/MCkKCiAgIGMg4o23IGI=">↗️</a><pre>       <span class='String'>&quot;string&quot;</span> <span class='Function'>⍷</span> <span class='String'>&quot;substring&quot;</span>
diff --git a/docs/help/depth.html b/docs/help/depth.html
index 6412a932..5824fc71 100644
--- a/docs/help/depth.html
+++ b/docs/help/depth.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-with-two-dots-"><a class="header" href="#circle-with-two-dots-">Circle With Two Dots (<code><span class='Modifier2'>⚇</span></code>)</a></h1>
-<h2 id="-----depth"><a class="header" href="#-----depth"><code><span class='Function'>𝔽</span><span class='Modifier2'>⚇</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⚇</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Depth</a></h2>
+<h2 id="𝔽𝕘-𝕩-𝕨-𝔽𝕘-𝕩-depth"><a class="header" href="#𝔽𝕘-𝕩-𝕨-𝔽𝕘-𝕩-depth"><code><span class='Function'>𝔽</span><span class='Modifier2'>⚇</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⚇</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Depth</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to the cells of the arguments at depth given in <code><span class='Value'>𝕘</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMeKKuOKGk+KahzEg4p+o4p+oMSwyLDPin6ksIOKfqDQsNSw24p+p4p+pCgogICAxIOKGk+KahzEg4p+o4p+oMSwyLDPin6ksIOKfqDQsNSw24p+p4p+p">↗️</a><pre>       <span class='Number'>1</span><span class='Modifier2'>⊸</span><span class='Function'>↓</span><span class='Modifier2'>⚇</span><span class='Number'>1</span> <span class='Bracket'>⟨⟨</span><span class='Number'>1</span><span class='Separator'>,</span><span class='Number'>2</span><span class='Separator'>,</span><span class='Number'>3</span><span class='Bracket'>⟩</span><span class='Separator'>,</span> <span class='Bracket'>⟨</span><span class='Number'>4</span><span class='Separator'>,</span><span class='Number'>5</span><span class='Separator'>,</span><span class='Number'>6</span><span class='Bracket'>⟩⟩</span>
 ⟨ ⟨ 2 3 ⟩ ⟨ 5 6 ⟩ ⟩
diff --git a/docs/help/depth_match.html b/docs/help/depth_match.html
index 37d3d07f..5087c84f 100644
--- a/docs/help/depth_match.html
+++ b/docs/help/depth_match.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="identical-to-"><a class="header" href="#identical-to-">Identical To (<code><span class='Function'>≡</span></code>)</a></h1>
-<h2 id="--depth"><a class="header" href="#--depth"><code><span class='Function'>≡</span> <span class='Value'>𝕩</span></code>: Depth</a></h2>
+<h2 id="-𝕩-depth"><a class="header" href="#-𝕩-depth"><code><span class='Function'>≡</span> <span class='Value'>𝕩</span></code>: Depth</a></h2>
 <p>Highest level of nesting in <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiaEgMuKAvzPigL80CgogIOKJoSDin6gyLDwzLDQsPDw8NeKfqQoKICDiiaEgOQ==">↗️</a><pre>      <span class='Function'>≡</span> <span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
 1
@@ -16,7 +16,7 @@
       <span class='Function'>≡</span> <span class='Number'>9</span>
 0
 </pre>
-<h2 id="---match"><a class="header" href="#---match"><code><span class='Value'>𝕨</span> <span class='Function'>≡</span> <span class='Value'>𝕩</span></code>: Match</a></h2>
+<h2 id="𝕨--𝕩-match"><a class="header" href="#𝕨--𝕩-match"><code><span class='Value'>𝕨</span> <span class='Function'>≡</span> <span class='Value'>𝕩</span></code>: Match</a></h2>
 <p>Does <code><span class='Value'>𝕨</span></code> exactly match <code><span class='Value'>𝕩</span></code>?</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKJoSDin6gx4p+pCgogIOKfqDHin6kg4omhIOKfqDHin6k=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>≡</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Bracket'>⟩</span>
 0
diff --git a/docs/help/deshape_reshape.html b/docs/help/deshape_reshape.html
index 5e9e22cb..7c6896b1 100644
--- a/docs/help/deshape_reshape.html
+++ b/docs/help/deshape_reshape.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="barb-"><a class="header" href="#barb-">Barb (<code><span class='Function'>⥊</span></code>)</a></h1>
-<h2 id="--deshape"><a class="header" href="#--deshape"><code><span class='Function'>⥊</span> <span class='Value'>𝕩</span></code>: Deshape</a></h2>
+<h2 id="-𝕩-deshape"><a class="header" href="#-𝕩-deshape"><code><span class='Function'>⥊</span> <span class='Value'>𝕩</span></code>: Deshape</a></h2>
 <p>Put all elements of <code><span class='Value'>𝕩</span></code> in a rank 1 array, converting to array if necessary.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgICAg4qWKIDEKCiAgICAgIOKliiAx4oC/MiDiiY0gM+KAvzQ=">↗️</a><pre>          <span class='Function'>⥊</span> <span class='Number'>1</span>
 ⟨ 1 ⟩
@@ -13,7 +13,7 @@
           <span class='Function'>⥊</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span> <span class='Function'>≍</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
 ⟨ 1 2 3 4 ⟩
 </pre>
-<h2 id="---reshape"><a class="header" href="#---reshape"><code><span class='Value'>𝕨</span> <span class='Function'>⥊</span> <span class='Value'>𝕩</span></code>: Reshape</a></h2>
+<h2 id="𝕨--𝕩-reshape"><a class="header" href="#𝕨--𝕩-reshape"><code><span class='Value'>𝕨</span> <span class='Function'>⥊</span> <span class='Value'>𝕩</span></code>: Reshape</a></h2>
 <p>Put all elements of <code><span class='Value'>𝕩</span></code> in an array of shape <code><span class='Value'>𝕨</span></code>, adding or removing elements if necessary.</p>
 <p>A single element in <code><span class='Value'>𝕩</span></code> can be a function, which will be replaced with an appropriate length:</p>
 <ul>
diff --git a/docs/help/each.html b/docs/help/each.html
index 2a323a0f..eb12ff29 100644
--- a/docs/help/each.html
+++ b/docs/help/each.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="diaresis-"><a class="header" href="#diaresis-">Diaresis (<code><span class='Modifier'>¨</span></code>)</a></h1>
-<h2 id="-----each"><a class="header" href="#-----each"><code><span class='Function'>𝔽</span><span class='Modifier'>¨</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>¨</span> <span class='Value'>𝕩</span></code>: Each</a></h2>
+<h2 id="𝔽-𝕩-𝕨-𝔽-𝕩-each"><a class="header" href="#𝔽-𝕩-𝕨-𝔽-𝕩-each"><code><span class='Function'>𝔽</span><span class='Modifier'>¨</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>¨</span> <span class='Value'>𝕩</span></code>: Each</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to/between the major elements of the arguments. (<code><span class='Function'>𝔽</span><span class='Modifier2'>⚇</span><span class='Number'>¯1</span></code>)</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgPMKoIDHigL8y4oC/MwoKICAgNOKAvzXigL82IOKIvsKoIDHigL8y4oC/Mw==">↗️</a><pre>       <span class='Function'>&lt;</span><span class='Modifier'>¨</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ┌─                   
diff --git a/docs/help/enclose_lessthan.html b/docs/help/enclose_lessthan.html
index c1207d58..31329115 100644
--- a/docs/help/enclose_lessthan.html
+++ b/docs/help/enclose_lessthan.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="lesser-than-"><a class="header" href="#lesser-than-">Lesser Than (<code><span class='Function'>&lt;</span></code>)</a></h1>
-<h2 id="--enclose"><a class="header" href="#--enclose"><code><span class='Function'>&lt;</span> <span class='Value'>𝕩</span></code>: Enclose</a></h2>
+<h2 id="-𝕩-enclose"><a class="header" href="#-𝕩-enclose"><code><span class='Function'>&lt;</span> <span class='Value'>𝕩</span></code>: Enclose</a></h2>
 <p>Create a unit array containing <code><span class='Value'>𝕩</span></code>. (<code><span class='Paren'>(</span><span class='Function'>≢</span><span class='Value'>𝕩</span><span class='Paren'>)</span> <span class='Function'>≡</span> <span class='Bracket'>⟨⟩</span></code>)</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICA8MQoKCiAg4omiPDE=">↗️</a><pre>      <span class='Function'>&lt;</span><span class='Number'>1</span>
 ┌·   
@@ -16,7 +16,7 @@
       <span class='Function'>≢&lt;</span><span class='Number'>1</span>
 ⟨⟩
 </pre>
-<h2 id="---lesser-than"><a class="header" href="#---lesser-than"><code><span class='Value'>𝕨</span> <span class='Function'>&lt;</span> <span class='Value'>𝕩</span></code>: Lesser Than</a></h2>
+<h2 id="𝕨--𝕩-lesser-than"><a class="header" href="#𝕨--𝕩-lesser-than"><code><span class='Value'>𝕨</span> <span class='Function'>&lt;</span> <span class='Value'>𝕩</span></code>: Lesser Than</a></h2>
 <p><code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> can both be either numbers or characters.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIDwgMwoKICAy4oC/M+KAvzAgPCAz4oC/MeKAvzA=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>&lt;</span> <span class='Number'>3</span>
diff --git a/docs/help/enlist_pair.html b/docs/help/enlist_pair.html
index a1470004..2915532b 100644
--- a/docs/help/enlist_pair.html
+++ b/docs/help/enlist_pair.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="bow-tie-"><a class="header" href="#bow-tie-">Bow Tie (<code><span class='Function'>⋈</span></code>)</a></h1>
-<h2 id="--enlist"><a class="header" href="#--enlist"><code><span class='Function'>⋈</span> <span class='Value'>𝕩</span></code>: Enlist</a></h2>
+<h2 id="-𝕩-enlist"><a class="header" href="#-𝕩-enlist"><code><span class='Function'>⋈</span> <span class='Value'>𝕩</span></code>: Enlist</a></h2>
 <p>Put <code><span class='Value'>𝕩</span></code> in a single element list. (<code><span class='Bracket'>⟨</span><span class='Value'>𝕩</span><span class='Bracket'>⟩</span></code>)</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDii4ggMQoKICDii4ggNOKAvzQg4qWKIDPigL82N+KAvzjigL8w">↗️</a><pre>      <span class='Function'>⋈</span> <span class='Number'>1</span>
 ⟨ 1 ⟩
@@ -20,7 +20,7 @@
              ┘  
                ┘
 </pre>
-<h2 id="---pair"><a class="header" href="#---pair"><code><span class='Value'>𝕨</span> <span class='Function'>⋈</span> <span class='Value'>𝕩</span></code>: Pair</a></h2>
+<h2 id="𝕨--𝕩-pair"><a class="header" href="#𝕨--𝕩-pair"><code><span class='Value'>𝕨</span> <span class='Function'>⋈</span> <span class='Value'>𝕩</span></code>: Pair</a></h2>
 <p>Put <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> in a two element list. (<code><span class='Bracket'>⟨</span><span class='Value'>𝕨</span><span class='Separator'>,</span> <span class='Value'>𝕩</span><span class='Bracket'>⟩</span></code>)</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKLiCAyCgogIDEg4ouIICJkc2Rhc2RhcyIKCiAgKDPigL8zIOKliiAzKSDii4ggNjfigL8nYSfigL8iZXhhbXBsZSI=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>⋈</span> <span class='Number'>2</span>
 ⟨ 1 2 ⟩
diff --git a/docs/help/exponential_power.html b/docs/help/exponential_power.html
index 0939787c..e063d1f9 100644
--- a/docs/help/exponential_power.html
+++ b/docs/help/exponential_power.html
@@ -5,13 +5,13 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="star-"><a class="header" href="#star-">Star (<code><span class='Function'>⋆</span></code>)</a></h1>
-<h2 id="--exponential"><a class="header" href="#--exponential"><code><span class='Function'>⋆</span> <span class='Value'>𝕩</span></code>: Exponential</a></h2>
+<h2 id="-𝕩-exponential"><a class="header" href="#-𝕩-exponential"><code><span class='Function'>⋆</span> <span class='Value'>𝕩</span></code>: Exponential</a></h2>
 <p><code><span class='Value'>e</span></code> (Euler's constant) to the power of <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDii4YgMOKAvzHigL8y4oC/Mw==">↗️</a><pre>      <span class='Function'>⋆</span> <span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 1 2.718281828459045 7.38905609893065 20.08553692318767 ⟩
 </pre>
-<h2 id="---power"><a class="header" href="#---power"><code><span class='Value'>𝕨</span> <span class='Function'>⋆</span> <span class='Value'>𝕩</span></code>: Power</a></h2>
+<h2 id="𝕨--𝕩-power"><a class="header" href="#𝕨--𝕩-power"><code><span class='Value'>𝕨</span> <span class='Function'>⋆</span> <span class='Value'>𝕩</span></code>: Power</a></h2>
 <p><code><span class='Value'>𝕨</span></code> to the power of <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAyIOKLhiA1CgogIDjigL814oC/OSDii4YgMgoKICAy4oC/MyDii4YgM+KAv8KvNA==">↗️</a><pre>      <span class='Number'>2</span> <span class='Function'>⋆</span> <span class='Number'>5</span>
diff --git a/docs/help/export.html b/docs/help/export.html
index 6fee8a1c..5fbbef78 100644
--- a/docs/help/export.html
+++ b/docs/help/export.html
@@ -13,7 +13,7 @@
     <span class='Value'>ns.unexported</span>
 <span class='Error'>Error: No key found</span>
 </pre>
-<h2 id="--export-names"><a class="header" href="#--export-names"><code><span class='Value'>𝕨</span> <span class='Gets'>⇐</span></code>: Export names</a></h2>
+<h2 id="𝕨--export-names"><a class="header" href="#𝕨--export-names"><code><span class='Value'>𝕨</span> <span class='Gets'>⇐</span></code>: Export names</a></h2>
 <p>Export the names given in <code><span class='Value'>𝕩</span></code> from the current namespace or program's scope. Names must be defined.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=bnMxIOKGkCB7IOKfqGFsc29leHBvcnRlZOKfqeKHkCwgZXhwb3J0ZWQg4oeQIDUsIGFsc29leHBvcnRlZCDihpAgMH0KbnMxLmV4cG9ydGVkCm5zMS5hbHNvZXhwb3J0ZWQ=">↗️</a><pre>    <span class='Value'>ns1</span> <span class='Gets'>←</span> <span class='Brace'>{</span> <span class='Bracket'>⟨</span><span class='Value'>alsoexported</span><span class='Bracket'>⟩</span><span class='Gets'>⇐</span><span class='Separator'>,</span> <span class='Value'>exported</span> <span class='Gets'>⇐</span> <span class='Number'>5</span><span class='Separator'>,</span> <span class='Value'>alsoexported</span> <span class='Gets'>←</span> <span class='Number'>0</span><span class='Brace'>}</span>
     <span class='Value'>ns1.exported</span>
diff --git a/docs/help/first_pick.html b/docs/help/first_pick.html
index e2d98d30..1e70daf4 100644
--- a/docs/help/first_pick.html
+++ b/docs/help/first_pick.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="square-image-of-or-equal-to-"><a class="header" href="#square-image-of-or-equal-to-">Square Image Of Or Equal To (<code><span class='Function'>⊑</span></code>)</a></h1>
-<h2 id="--first"><a class="header" href="#--first"><code><span class='Function'>⊑</span> <span class='Value'>𝕩</span></code>: First</a></h2>
+<h2 id="-𝕩-first"><a class="header" href="#-𝕩-first"><code><span class='Function'>⊑</span> <span class='Value'>𝕩</span></code>: First</a></h2>
 <p>First element of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oqRIOKfqDEsIDIsIDPin6kKCiAgIGEg4oaQIDPigL8zIOKliiDihpU5CgogICDiipEgYQ==">↗️</a><pre>       <span class='Function'>⊑</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Separator'>,</span> <span class='Number'>2</span><span class='Separator'>,</span> <span class='Number'>3</span><span class='Bracket'>⟩</span>
 1
@@ -15,7 +15,7 @@
        <span class='Function'>⊑</span> <span class='Value'>a</span>
 0
 </pre>
-<h2 id="---pick"><a class="header" href="#---pick"><code><span class='Value'>𝕨</span> <span class='Function'>⊑</span> <span class='Value'>𝕩</span></code>: Pick</a></h2>
+<h2 id="𝕨--𝕩-pick"><a class="header" href="#𝕨--𝕩-pick"><code><span class='Value'>𝕨</span> <span class='Function'>⊑</span> <span class='Value'>𝕩</span></code>: Pick</a></h2>
 <p>Pick the element of <code><span class='Value'>𝕨</span></code> at index <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMiDiipEg4p+oMSwgMiwgM+KfqQoKICAgYiDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIDLigL8wIOKKkSBi">↗️</a><pre>       <span class='Number'>2</span> <span class='Function'>⊑</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Separator'>,</span> <span class='Number'>2</span><span class='Separator'>,</span> <span class='Number'>3</span><span class='Bracket'>⟩</span>
 3
diff --git a/docs/help/firstcell_select.html b/docs/help/firstcell_select.html
index 2207294d..c24a2bcd 100644
--- a/docs/help/firstcell_select.html
+++ b/docs/help/firstcell_select.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="square-image-of-"><a class="header" href="#square-image-of-">Square Image Of (<code><span class='Function'>⊏</span></code>)</a></h1>
-<h2 id="--first-cell"><a class="header" href="#--first-cell"><code><span class='Function'>⊏</span> <span class='Value'>𝕩</span></code>: First Cell</a></h2>
+<h2 id="-𝕩-first-cell"><a class="header" href="#-𝕩-first-cell"><code><span class='Function'>⊏</span> <span class='Value'>𝕩</span></code>: First Cell</a></h2>
 <p>First major cell of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oqPIOKfqDEsIDIsIDPin6kKCiAgIGEg4oaQIDPigL8zIOKliiDihpU5CgogICDiio8gYQ==">↗️</a><pre>       <span class='Function'>⊏</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Separator'>,</span> <span class='Number'>2</span><span class='Separator'>,</span> <span class='Number'>3</span><span class='Bracket'>⟩</span>
 ┌·   
@@ -17,7 +17,7 @@
        <span class='Function'>⊏</span> <span class='Value'>a</span>
 ⟨ 0 1 2 ⟩
 </pre>
-<h2 id="---select"><a class="header" href="#---select"><code><span class='Value'>𝕨</span> <span class='Function'>⊏</span> <span class='Value'>𝕩</span></code>: Select</a></h2>
+<h2 id="𝕨--𝕩-select"><a class="header" href="#𝕨--𝕩-select"><code><span class='Value'>𝕨</span> <span class='Function'>⊏</span> <span class='Value'>𝕩</span></code>: Select</a></h2>
 <p>Select the major cells of <code><span class='Value'>𝕨</span></code> at the indices in <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMuKAvzAg4oqPIOKfqDEsIDIsIDPin6kKCiAgIGIg4oaQIDPigL8zIOKliiDihpU5CgogICAy4oC/MCDiio8gYg==">↗️</a><pre>       <span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>0</span> <span class='Function'>⊏</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Separator'>,</span> <span class='Number'>2</span><span class='Separator'>,</span> <span class='Number'>3</span><span class='Bracket'>⟩</span>
 ⟨ 3 1 ⟩
diff --git a/docs/help/floor_minimum.html b/docs/help/floor_minimum.html
index 1d6c8d6f..92d6135e 100644
--- a/docs/help/floor_minimum.html
+++ b/docs/help/floor_minimum.html
@@ -5,13 +5,13 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="left-floor-"><a class="header" href="#left-floor-">Left Floor (<code><span class='Function'>⌊</span></code>)</a></h1>
-<h2 id="--floor"><a class="header" href="#--floor"><code><span class='Function'>⌊</span> <span class='Value'>𝕩</span></code>: Floor</a></h2>
+<h2 id="-𝕩-floor"><a class="header" href="#-𝕩-floor"><code><span class='Function'>⌊</span> <span class='Value'>𝕩</span></code>: Floor</a></h2>
 <p>Round <code><span class='Value'>𝕩</span></code> down.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDijIogMS4y4oC/z4DigL8z4oC/Ny44OQ==">↗️</a><pre>      <span class='Function'>⌊</span> <span class='Number'>1.2</span><span class='Ligature'>‿</span><span class='Number'>π</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>7.89</span>
 ⟨ 1 3 3 7 ⟩
 </pre>
-<h2 id="---minimum"><a class="header" href="#---minimum"><code><span class='Value'>𝕨</span> <span class='Function'>⌊</span> <span class='Value'>𝕩</span></code>: Minimum</a></h2>
+<h2 id="𝕨--𝕩-minimum"><a class="header" href="#𝕨--𝕩-minimum"><code><span class='Value'>𝕨</span> <span class='Function'>⌊</span> <span class='Value'>𝕩</span></code>: Minimum</a></h2>
 <p>Minimum of <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKMiiAyCgogIDLigL8zIOKMiiA04oC/Mg==">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>⌊</span> <span class='Number'>2</span>
diff --git a/docs/help/fold.html b/docs/help/fold.html
index 0d208e27..4737c9a8 100644
--- a/docs/help/fold.html
+++ b/docs/help/fold.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="acute-accent-"><a class="header" href="#acute-accent-">Acute Accent (<code><span class='Modifier'>´</span></code>)</a></h1>
-<h2 id="--fold"><a class="header" href="#--fold"><code><span class='Function'>𝔽</span><span class='Modifier'>´</span> <span class='Value'>𝕩</span></code>: Fold</a></h2>
+<h2 id="𝔽-𝕩-fold"><a class="header" href="#𝔽-𝕩-fold"><code><span class='Function'>𝔽</span><span class='Modifier'>´</span> <span class='Value'>𝕩</span></code>: Fold</a></h2>
 <p>Fold over <code><span class='Value'>𝕩</span></code> with <code><span class='Function'>𝔽</span></code> from right to left i.e. Insert <code><span class='Function'>𝔽</span></code> between the elements of <code><span class='Value'>𝕩</span></code>.</p>
 <p><code><span class='Value'>𝕩</span></code> must be a simple list (<code><span class='Number'>1</span> <span class='Function'>=</span> <span class='Function'>=</span><span class='Value'>𝕩</span></code>).</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgK8K0IDHigL8y4oC/MwoKICAgMSsyKzMKCiAgIC3CtCAx4oC/MuKAvzMKCiAgIDEtMi0z">↗️</a><pre>       <span class='Function'>+</span><span class='Modifier'>´</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
@@ -20,7 +20,7 @@
        <span class='Number'>1</span><span class='Function'>-</span><span class='Number'>2</span><span class='Function'>-</span><span class='Number'>3</span>
 2
 </pre>
-<h2 id="---fold-with-initial"><a class="header" href="#---fold-with-initial"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>´</span> <span class='Value'>𝕩</span></code>: Fold With initial</a></h2>
+<h2 id="𝕨-𝔽-𝕩-fold-with-initial"><a class="header" href="#𝕨-𝔽-𝕩-fold-with-initial"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>´</span> <span class='Value'>𝕩</span></code>: Fold With initial</a></h2>
 <p>Monadic fold, but use <code><span class='Value'>𝕨</span></code> as initial right argument.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNSArwrQgMeKAvzLigL8zCgogICAxKzIrMys1CgogICA1IC3CtCAx4oC/MuKAvzMKCiAgIDEtMi0zLTU=">↗️</a><pre>       <span class='Number'>5</span> <span class='Function'>+</span><span class='Modifier'>´</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 11
diff --git a/docs/help/gradedown_binsdown.html b/docs/help/gradedown_binsdown.html
index fd32415e..2491ab57 100644
--- a/docs/help/gradedown_binsdown.html
+++ b/docs/help/gradedown_binsdown.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="del-stile-"><a class="header" href="#del-stile-">Del Stile (<code><span class='Function'>⍒</span></code>)</a></h1>
-<h2 id="--grade-down"><a class="header" href="#--grade-down"><code><span class='Function'>⍒</span> <span class='Value'>𝕩</span></code>: Grade Down</a></h2>
+<h2 id="-𝕩-grade-down"><a class="header" href="#-𝕩-grade-down"><code><span class='Function'>⍒</span> <span class='Value'>𝕩</span></code>: Grade Down</a></h2>
 <p>Indices of <code><span class='Value'>𝕩</span></code> that would sort its major cells in descending order.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgYSDihpAgMeKAvzLigL8zCgogICDijZIgYQoKICAgKOKNkmEpIOKKjyBh">↗️</a><pre>       <span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 
@@ -15,7 +15,7 @@
        <span class='Paren'>(</span><span class='Function'>⍒</span><span class='Value'>a</span><span class='Paren'>)</span> <span class='Function'>⊏</span> <span class='Value'>a</span>
 ⟨ 3 2 1 ⟩
 </pre>
-<h2 id="---bins-down"><a class="header" href="#---bins-down"><code><span class='Value'>𝕨</span> <span class='Function'>⍒</span> <span class='Value'>𝕩</span></code>: Bins Down</a></h2>
+<h2 id="𝕨--𝕩-bins-down"><a class="header" href="#𝕨--𝕩-bins-down"><code><span class='Value'>𝕨</span> <span class='Function'>⍒</span> <span class='Value'>𝕩</span></code>: Bins Down</a></h2>
 <p>Binary search for each element of <code><span class='Value'>𝕩</span></code> in <code><span class='Value'>𝕨</span></code>, and return the index found, if any.</p>
 <p><code><span class='Value'>𝕨</span></code> must be sorted in descending order.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Right Pervasive.</a></p>
diff --git a/docs/help/gradeup_binsup.html b/docs/help/gradeup_binsup.html
index 8fdff64f..580798e9 100644
--- a/docs/help/gradeup_binsup.html
+++ b/docs/help/gradeup_binsup.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="delta-stile-"><a class="header" href="#delta-stile-">Delta Stile (<code><span class='Function'>⍋</span></code>)</a></h1>
-<h2 id="--grade-up"><a class="header" href="#--grade-up"><code><span class='Function'>⍋</span> <span class='Value'>𝕩</span></code>: Grade Up</a></h2>
+<h2 id="-𝕩-grade-up"><a class="header" href="#-𝕩-grade-up"><code><span class='Function'>⍋</span> <span class='Value'>𝕩</span></code>: Grade Up</a></h2>
 <p>Indices of <code><span class='Value'>𝕩</span></code> that would sort its major cells in ascending order.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgYSDihpAgM+KAvzLigL8xCgogICDijYsgYQoKICAgKOKNi2EpIOKKjyBh">↗️</a><pre>       <span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>1</span>
 
@@ -15,7 +15,7 @@
        <span class='Paren'>(</span><span class='Function'>⍋</span><span class='Value'>a</span><span class='Paren'>)</span> <span class='Function'>⊏</span> <span class='Value'>a</span>
 ⟨ 1 2 3 ⟩
 </pre>
-<h2 id="---bins-up"><a class="header" href="#---bins-up"><code><span class='Value'>𝕨</span> <span class='Function'>⍋</span> <span class='Value'>𝕩</span></code>: Bins Up</a></h2>
+<h2 id="𝕨--𝕩-bins-up"><a class="header" href="#𝕨--𝕩-bins-up"><code><span class='Value'>𝕨</span> <span class='Function'>⍋</span> <span class='Value'>𝕩</span></code>: Bins Up</a></h2>
 <p>Binary search for each element of <code><span class='Value'>𝕩</span></code> in <code><span class='Value'>𝕨</span></code>, and return the index found, if any.</p>
 <p><code><span class='Value'>𝕨</span></code> must be sorted in ascending order.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgM+KAvzTigL814oC/NyDijYsgMgoKICAgM+KAvzTigL814oC/NyDijYsgMuKAvzY=">↗️</a><pre>       <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>7</span> <span class='Function'>⍋</span> <span class='Number'>2</span>
diff --git a/docs/help/greaterthanorequalto.html b/docs/help/greaterthanorequalto.html
index de00d15a..635fd9cd 100644
--- a/docs/help/greaterthanorequalto.html
+++ b/docs/help/greaterthanorequalto.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="greater-than-or-equal-to-"><a class="header" href="#greater-than-or-equal-to-">Greater Than or Equal To (<code><span class='Function'>≥</span></code>)</a></h1>
-<h2 id="---greater-than-or-equal-to"><a class="header" href="#---greater-than-or-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>≥</span> <span class='Value'>𝕩</span></code>: Greater Than or Equal To</a></h2>
+<h2 id="𝕨--𝕩-greater-than-or-equal-to"><a class="header" href="#𝕨--𝕩-greater-than-or-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>≥</span> <span class='Value'>𝕩</span></code>: Greater Than or Equal To</a></h2>
 <p><code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> can both be either numbers or characters.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKJpSAzCgogIDLigL8z4oC/MCDiiaUgM+KAvzHigL8w">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>≥</span> <span class='Number'>3</span>
diff --git a/docs/help/groupindices_group.html b/docs/help/groupindices_group.html
index 55be5ee1..9c0742c1 100644
--- a/docs/help/groupindices_group.html
+++ b/docs/help/groupindices_group.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="square-cup-"><a class="header" href="#square-cup-">Square Cup (<code><span class='Function'>⊔</span></code>)</a></h1>
-<h2 id="--group-indices"><a class="header" href="#--group-indices"><code><span class='Function'>⊔</span> <span class='Value'>𝕩</span></code>: Group Indices</a></h2>
+<h2 id="-𝕩-group-indices"><a class="header" href="#-𝕩-group-indices"><code><span class='Function'>⊔</span> <span class='Value'>𝕩</span></code>: Group Indices</a></h2>
 <p>Group the indices of the major cells of <code><span class='Value'>𝕩</span></code> by their respective values.</p>
 <p><code><span class='Value'>𝕩</span></code> must consist of integers. Groups start from 0.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oqUIDTigL814oC/NuKAvzbigL804oC/N+KAvzUKCiAgICjihpU4KSDiiY0g4oqUIDTigL814oC/NuKAvzbigL804oC/N+KAvzU=">↗️</a><pre>       <span class='Function'>⊔</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>7</span><span class='Ligature'>‿</span><span class='Number'>5</span>
@@ -17,7 +17,7 @@
   ⟨⟩ ⟨⟩ ⟨⟩ ⟨⟩ ⟨ 0 4 ⟩ ⟨ 1 6 ⟩ ⟨ 2 3 ⟩ ⟨ 5 ⟩  
                                             ┘
 </pre>
-<h2 id="---group"><a class="header" href="#---group"><code><span class='Value'>𝕨</span> <span class='Function'>⊔</span> <span class='Value'>𝕩</span></code>: Group</a></h2>
+<h2 id="𝕨--𝕩-group"><a class="header" href="#𝕨--𝕩-group"><code><span class='Value'>𝕨</span> <span class='Function'>⊔</span> <span class='Value'>𝕩</span></code>: Group</a></h2>
 <p>Group the major cells of <code><span class='Value'>𝕩</span></code> by their respective indices in <code><span class='Value'>𝕨</span></code>.</p>
 <p>If an element corresponds to <code><span class='Number'>¯1</span></code>, it is excluded from grouping.</p>
 <p>An extra element can be added to the end of <code><span class='Value'>𝕨</span></code> to specify length of the result.</p>
diff --git a/docs/help/identity_left.html b/docs/help/identity_left.html
index 57e03eae..e538aba8 100644
--- a/docs/help/identity_left.html
+++ b/docs/help/identity_left.html
@@ -5,12 +5,12 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="left-tack-"><a class="header" href="#left-tack-">Left Tack (<code><span class='Function'>⊣</span></code>)</a></h1>
-<h2 id="--identity"><a class="header" href="#--identity"><code><span class='Function'>⊣</span> <span class='Value'>𝕩</span></code>: Identity</a></h2>
+<h2 id="-𝕩-identity"><a class="header" href="#-𝕩-identity"><code><span class='Function'>⊣</span> <span class='Value'>𝕩</span></code>: Identity</a></h2>
 <p>Return <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiqMgNQ==">↗️</a><pre>      <span class='Function'>⊣</span> <span class='Number'>5</span>
 5
 </pre>
-<h2 id="---left"><a class="header" href="#---left"><code><span class='Value'>𝕨</span> <span class='Function'>⊣</span> <span class='Value'>𝕩</span></code>: Left</a></h2>
+<h2 id="𝕨--𝕩-left"><a class="header" href="#𝕨--𝕩-left"><code><span class='Value'>𝕨</span> <span class='Function'>⊣</span> <span class='Value'>𝕩</span></code>: Left</a></h2>
 <p>Return <code><span class='Value'>𝕨</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICA1IOKKoyA4CgogICdhJyDiiqMgMeKAvzLigL8z">↗️</a><pre>      <span class='Number'>5</span> <span class='Function'>⊣</span> <span class='Number'>8</span>
 5
diff --git a/docs/help/identity_right.html b/docs/help/identity_right.html
index d233e6a0..c77c82bc 100644
--- a/docs/help/identity_right.html
+++ b/docs/help/identity_right.html
@@ -5,12 +5,12 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="right-tack-"><a class="header" href="#right-tack-">Right Tack (<code><span class='Function'>⊢</span></code>)</a></h1>
-<h2 id="--identity"><a class="header" href="#--identity"><code><span class='Function'>⊢</span> <span class='Value'>𝕩</span></code>: Identity</a></h2>
+<h2 id="-𝕩-identity"><a class="header" href="#-𝕩-identity"><code><span class='Function'>⊢</span> <span class='Value'>𝕩</span></code>: Identity</a></h2>
 <p>Return <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiqIgNQ==">↗️</a><pre>      <span class='Function'>⊢</span> <span class='Number'>5</span>
 5
 </pre>
-<h2 id="---right"><a class="header" href="#---right"><code><span class='Value'>𝕨</span> <span class='Function'>⊢</span> <span class='Value'>𝕩</span></code>: Right</a></h2>
+<h2 id="𝕨--𝕩-right"><a class="header" href="#𝕨--𝕩-right"><code><span class='Value'>𝕨</span> <span class='Function'>⊢</span> <span class='Value'>𝕩</span></code>: Right</a></h2>
 <p>Return <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICA1IOKKoiA4CgogICdhJyDiiqIgMeKAvzLigL8z">↗️</a><pre>      <span class='Number'>5</span> <span class='Function'>⊢</span> <span class='Number'>8</span>
 8
diff --git a/docs/help/indices_replicate.html b/docs/help/indices_replicate.html
index 3a98ac80..56590c4d 100644
--- a/docs/help/indices_replicate.html
+++ b/docs/help/indices_replicate.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="solidus-"><a class="header" href="#solidus-">Solidus (<code><span class='Function'>/</span></code>)</a></h1>
-<h2 id="--indices"><a class="header" href="#--indices"><code><span class='Function'>/</span> <span class='Value'>𝕩</span></code>: Indices</a></h2>
+<h2 id="-𝕩-indices"><a class="header" href="#-𝕩-indices"><code><span class='Function'>/</span> <span class='Value'>𝕩</span></code>: Indices</a></h2>
 <p>Repeat the index of each element in <code><span class='Value'>𝕩</span></code> by the element's value. <code><span class='Value'>𝕩</span></code> must be rank 1.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgLyAx4oC/MuKAvzMKCiAgIC8gMeKAvzDigL8x">↗️</a><pre>       <span class='Function'>/</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 0 1 1 2 2 2 ⟩
@@ -13,7 +13,7 @@
        <span class='Function'>/</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>1</span>
 ⟨ 0 2 ⟩
 </pre>
-<h2 id="---replicate"><a class="header" href="#---replicate"><code><span class='Value'>𝕨</span> <span class='Function'>/</span> <span class='Value'>𝕩</span></code>: Replicate</a></h2>
+<h2 id="𝕨--𝕩-replicate"><a class="header" href="#𝕨--𝕩-replicate"><code><span class='Value'>𝕨</span> <span class='Function'>/</span> <span class='Value'>𝕩</span></code>: Replicate</a></h2>
 <p>Repeat each major cell in <code><span class='Value'>𝕩</span></code> by the corresponding element in <code><span class='Value'>𝕨</span></code>.</p>
 <p>Atomic <code><span class='Value'>𝕨</span></code> applies to all elements.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMyAvICJjb3B5IgoKICAgMeKAvzDigL8xIC8gMeKAvzLigL8z">↗️</a><pre>       <span class='Number'>3</span> <span class='Function'>/</span> <span class='String'>&quot;copy&quot;</span>
diff --git a/docs/help/insert.html b/docs/help/insert.html
index 43f9babb..1206deed 100644
--- a/docs/help/insert.html
+++ b/docs/help/insert.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="double-acute-accent-"><a class="header" href="#double-acute-accent-">Double Acute Accent (<code><span class='Modifier'>˝</span></code>)</a></h1>
-<h2 id="--insert"><a class="header" href="#--insert"><code><span class='Function'>𝔽</span><span class='Modifier'>˝</span> <span class='Value'>𝕩</span></code>: Insert</a></h2>
+<h2 id="𝔽-𝕩-insert"><a class="header" href="#𝔽-𝕩-insert"><code><span class='Function'>𝔽</span><span class='Modifier'>˝</span> <span class='Value'>𝕩</span></code>: Insert</a></h2>
 <p>Fold over <code><span class='Value'>𝕩</span></code> with <code><span class='Function'>𝔽</span></code> from right to left i.e. Insert <code><span class='Function'>𝔽</span></code> between the major cells of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgYSDihpAgM+KAvzMg4qWKIOKGlTkKCiAgICvLnSBhCgogICAw4oC/MeKAvzIgKyAz4oC/NOKAvzUgKyA24oC/N+KAvzg=">↗️</a><pre>       <span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>9</span>
 
@@ -15,7 +15,7 @@
        <span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span> <span class='Function'>+</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span> <span class='Function'>+</span> <span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>7</span><span class='Ligature'>‿</span><span class='Number'>8</span>
 ⟨ 9 12 15 ⟩
 </pre>
-<h2 id="---insert-with-initial"><a class="header" href="#---insert-with-initial"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˝</span> <span class='Value'>𝕩</span></code>: Insert With initial</a></h2>
+<h2 id="𝕨-𝔽-𝕩-insert-with-initial"><a class="header" href="#𝕨-𝔽-𝕩-insert-with-initial"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˝</span> <span class='Value'>𝕩</span></code>: Insert With initial</a></h2>
 <p>Monadic insert, but use <code><span class='Value'>𝕨</span></code> as initial right argument.</p>
 <p>If</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgYiDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIDHigL8x4oC/MSAry50gYgoKICAgMSAry50gYgoKICAgMOKAvzHigL8yICsgM+KAvzTigL81ICsgNuKAvzfigL84ICsgMeKAvzHigL8x">↗️</a><pre>       <span class='Value'>b</span> <span class='Gets'>←</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>9</span>
diff --git a/docs/help/join_jointo.html b/docs/help/join_jointo.html
index fcc69954..46cd0df2 100644
--- a/docs/help/join_jointo.html
+++ b/docs/help/join_jointo.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="lazy-s-"><a class="header" href="#lazy-s-">Lazy S (<code><span class='Function'>∾</span></code>)</a></h1>
-<h2 id="--join"><a class="header" href="#--join"><code><span class='Function'>∾</span> <span class='Value'>𝕩</span></code>: Join</a></h2>
+<h2 id="-𝕩-join"><a class="header" href="#-𝕩-join"><code><span class='Function'>∾</span> <span class='Value'>𝕩</span></code>: Join</a></h2>
 <p>Join all elements of <code><span class='Value'>𝕩</span></code> together.</p>
 <p>Element ranks must be compatible.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oi+IOKfqDHigL8yLCAzLCA04oC/NeKfqQoKICAgbSDihpAgKDPigL8x4omN4oycNOKAvzLigL81KSDipYrCqCAy4oC/M+KliuKGlTYKCiAgIOKIviBt">↗️</a><pre>       <span class='Function'>∾</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Separator'>,</span> <span class='Number'>3</span><span class='Separator'>,</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Bracket'>⟩</span>
@@ -21,7 +21,7 @@
   3 3 3 3 4 4 5 5 5 5 5  
                         ┘
 </pre>
-<h2 id="---join"><a class="header" href="#---join"><code><span class='Value'>𝕨</span> <span class='Function'>∾</span> <span class='Value'>𝕩</span></code>: Join</a></h2>
+<h2 id="𝕨--𝕩-join"><a class="header" href="#𝕨--𝕩-join"><code><span class='Value'>𝕨</span> <span class='Function'>∾</span> <span class='Value'>𝕩</span></code>: Join</a></h2>
 <p>Join <code><span class='Value'>𝕨</span></code> to <code><span class='Value'>𝕩</span></code> along the first axis.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgImFiY2QiIOKIviAiRUZHIgoKICAgYSDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIGMg4oaQIDTigL8zIOKliiDihpUxMgoKICAgYeKIvmM=">↗️</a><pre>       <span class='String'>&quot;abcd&quot;</span> <span class='Function'>∾</span> <span class='String'>&quot;EFG&quot;</span>
 "abcdEFG"
diff --git a/docs/help/leftargument.html b/docs/help/leftargument.html
index 0ffd8305..785b16f8 100644
--- a/docs/help/leftargument.html
+++ b/docs/help/leftargument.html
@@ -4,8 +4,8 @@
   <title>BQN: Mathematical Double-struck W (𝕨)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="mathematical-double-struck-w-"><a class="header" href="#mathematical-double-struck-w-">Mathematical Double-struck W (<code><span class='Value'>𝕨</span></code>)</a></h1>
-<h2 id="-left-argument"><a class="header" href="#-left-argument"><code><span class='Value'>𝕨</span></code>: Left Argument</a></h2>
+<h1 id="mathematical-double-struck-w-𝕨"><a class="header" href="#mathematical-double-struck-w-𝕨">Mathematical Double-struck W (<code><span class='Value'>𝕨</span></code>)</a></h1>
+<h2 id="𝕨-left-argument"><a class="header" href="#𝕨-left-argument"><code><span class='Value'>𝕨</span></code>: Left Argument</a></h2>
 <p>A variable assigned to the left argument of a block. <code><span class='Function'>𝕎</span></code> can be used to access the left argument as a function.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=NSB78J2VqH0gMQ==">↗️</a><pre>    <span class='Number'>5</span> <span class='Brace'>{</span><span class='Value'>𝕨</span><span class='Brace'>}</span> <span class='Number'>1</span>
 5
diff --git a/docs/help/length_notequals.html b/docs/help/length_notequals.html
index d352e2de..95f7fa63 100644
--- a/docs/help/length_notequals.html
+++ b/docs/help/length_notequals.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="not-equal-"><a class="header" href="#not-equal-">Not Equal (<code><span class='Function'>≠</span></code>)</a></h1>
-<h2 id="--length"><a class="header" href="#--length"><code><span class='Function'>≠</span> <span class='Value'>𝕩</span></code>: Length</a></h2>
+<h2 id="-𝕩-length"><a class="header" href="#-𝕩-length"><code><span class='Function'>≠</span> <span class='Value'>𝕩</span></code>: Length</a></h2>
 <p>Length of the first dimension of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiaAgMwoKICDiiaAg4p+oMSwgMiwgM+KfqQoKICDiiaAgM+KAvzTigL814qWKMAoKICDiiaAgMeKAvzTigL814qWKMAoKICDiiaAgNOKAvzTigL814qWKMA==">↗️</a><pre>      <span class='Function'>≠</span> <span class='Number'>3</span>
 1
@@ -22,7 +22,7 @@
       <span class='Function'>≠</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Function'>⥊</span><span class='Number'>0</span>
 4
 </pre>
-<h2 id="---not-equal-to"><a class="header" href="#---not-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>≠</span> <span class='Value'>𝕩</span></code>: Not Equal To</a></h2>
+<h2 id="𝕨--𝕩-not-equal-to"><a class="header" href="#𝕨--𝕩-not-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>≠</span> <span class='Value'>𝕩</span></code>: Not Equal To</a></h2>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKJoCAzCgogIDLigL8z4oC/MCDiiaAgM+KAvzHigL8wCgogICdhJyDiiaAgJ2En">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>≠</span> <span class='Number'>3</span>
 1
diff --git a/docs/help/lessthanorequalto.html b/docs/help/lessthanorequalto.html
index 1b157107..28550d4c 100644
--- a/docs/help/lessthanorequalto.html
+++ b/docs/help/lessthanorequalto.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="lesser-than-or-equal-to-"><a class="header" href="#lesser-than-or-equal-to-">Lesser Than or Equal To (<code><span class='Function'>≤</span></code>)</a></h1>
-<h2 id="---lesser-than-or-equal-to"><a class="header" href="#---lesser-than-or-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>≤</span> <span class='Value'>𝕩</span></code>: Lesser Than or Equal To</a></h2>
+<h2 id="𝕨--𝕩-lesser-than-or-equal-to"><a class="header" href="#𝕨--𝕩-lesser-than-or-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>≤</span> <span class='Value'>𝕩</span></code>: Lesser Than or Equal To</a></h2>
 <p><code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> can both be either numbers or characters.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKJpCAzCgogIDLigL8z4oC/MCDiiaQgM+KAvzHigL8w">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>≤</span> <span class='Number'>3</span>
diff --git a/docs/help/markfirst_memberof.html b/docs/help/markfirst_memberof.html
index 78d53d3e..10dfc4e7 100644
--- a/docs/help/markfirst_memberof.html
+++ b/docs/help/markfirst_memberof.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="element-of-"><a class="header" href="#element-of-">Element Of (<code><span class='Function'>∊</span></code>)</a></h1>
-<h2 id="--unique-mask"><a class="header" href="#--unique-mask"><code><span class='Function'>∊</span> <span class='Value'>𝕩</span></code>: Unique Mask</a></h2>
+<h2 id="-𝕩-unique-mask"><a class="header" href="#-𝕩-unique-mask"><code><span class='Function'>∊</span> <span class='Value'>𝕩</span></code>: Unique Mask</a></h2>
 <p>Mark the first occurrence of each major cell in <code><span class='Value'>𝕩</span></code> with a 1, and all other occurrences with a 0.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oiKIDTigL814oC/NuKAvzbigL804oC/N+KAvzUKCiAgIGEg4oaQIDPigL8zIOKliiDihpU5CgogICDiiIogYQ==">↗️</a><pre>       <span class='Function'>∊</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>7</span><span class='Ligature'>‿</span><span class='Number'>5</span>
 ⟨ 1 1 1 0 0 1 0 ⟩
@@ -15,7 +15,7 @@
        <span class='Function'>∊</span> <span class='Value'>a</span>
 ⟨ 1 1 1 ⟩
 </pre>
-<h2 id="---member-of"><a class="header" href="#---member-of"><code><span class='Value'>𝕨</span> <span class='Function'>∊</span> <span class='Value'>𝕩</span></code>: Member Of</a></h2>
+<h2 id="𝕨--𝕩-member-of"><a class="header" href="#𝕨--𝕩-member-of"><code><span class='Value'>𝕨</span> <span class='Function'>∊</span> <span class='Value'>𝕩</span></code>: Member Of</a></h2>
 <p>Is each element in <code><span class='Value'>𝕨</span></code> a major cell of <code><span class='Value'>𝕩</span></code>?</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4p+oMeKfqSDiiIog4oaVOQoKICAgYiDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIOKfqDDigL8x4oC/MuKfqSDiiIogYgoKICAg4p+oMeKAvzMg4qWKIDDigL8x4oC/MuKfqSDiiIogYg==">↗️</a><pre>       <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Bracket'>⟩</span> <span class='Function'>∊</span> <span class='Function'>↕</span><span class='Number'>9</span>
 ⟨ 1 ⟩
diff --git a/docs/help/merge_greaterthan.html b/docs/help/merge_greaterthan.html
index f8f978ea..6dcef618 100644
--- a/docs/help/merge_greaterthan.html
+++ b/docs/help/merge_greaterthan.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="greater-than-"><a class="header" href="#greater-than-">Greater Than (<code><span class='Function'>&gt;</span></code>)</a></h1>
-<h2 id="--merge"><a class="header" href="#--merge"><code><span class='Function'>&gt;</span> <span class='Value'>𝕩</span></code>: Merge</a></h2>
+<h2 id="-𝕩-merge"><a class="header" href="#-𝕩-merge"><code><span class='Function'>&gt;</span> <span class='Value'>𝕩</span></code>: Merge</a></h2>
 <p>Add the rank of an element of <code><span class='Value'>𝕩</span></code> to the rank of <code><span class='Value'>𝕩</span></code>.</p>
 <p>All elements must have the same rank.</p>
 <p>Returns atomic values as is.</p>
@@ -23,7 +23,7 @@
       <span class='Function'>≢&gt;</span><span class='Value'>a</span>
 ⟨ 2 2 ⟩
 </pre>
-<h2 id="---greater-than"><a class="header" href="#---greater-than"><code><span class='Value'>𝕨</span> <span class='Function'>&gt;</span> <span class='Value'>𝕩</span></code>: Greater Than</a></h2>
+<h2 id="𝕨--𝕩-greater-than"><a class="header" href="#𝕨--𝕩-greater-than"><code><span class='Value'>𝕨</span> <span class='Function'>&gt;</span> <span class='Value'>𝕩</span></code>: Greater Than</a></h2>
 <p><code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> can both be either numbers or characters.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxID4gMwoKICAy4oC/M+KAvzAgPiAz4oC/MeKAvzAKCiAgJ2EnID4gJ2In">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>&gt;</span> <span class='Number'>3</span>
diff --git a/docs/help/modifierleftoperand.html b/docs/help/modifierleftoperand.html
index 04d5c9d4..ebffdfe9 100644
--- a/docs/help/modifierleftoperand.html
+++ b/docs/help/modifierleftoperand.html
@@ -4,8 +4,8 @@
   <title>BQN: Mathematical Double-struck F (𝔽)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="mathematical-double-struck-f-"><a class="header" href="#mathematical-double-struck-f-">Mathematical Double-struck F (<code><span class='Function'>𝔽</span></code>)</a></h1>
-<h2 id="-modifier-left-operand"><a class="header" href="#-modifier-left-operand"><code><span class='Function'>𝔽</span></code>: Modifier Left operand</a></h2>
+<h1 id="mathematical-double-struck-f-𝔽"><a class="header" href="#mathematical-double-struck-f-𝔽">Mathematical Double-struck F (<code><span class='Function'>𝔽</span></code>)</a></h1>
+<h2 id="𝔽-modifier-left-operand"><a class="header" href="#𝔽-modifier-left-operand"><code><span class='Function'>𝔽</span></code>: Modifier Left operand</a></h2>
 <p>A variable assigned to the left operand of a modifier block. <code><span class='Value'>𝕗</span></code> can be used to access the left operand as a subject.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=NSAre/CdlZfiiqPwnZWofSAx">↗️</a><pre>    <span class='Number'>5</span> <span class='Function'>+</span><span class='Brace'>{</span><span class='Value'>𝕗</span><span class='Function'>⊣</span><span class='Value'>𝕨</span><span class='Brace'>}</span> <span class='Number'>1</span>
 +
diff --git a/docs/help/negate_subtract.html b/docs/help/negate_subtract.html
index 56eb70ff..91c689cf 100644
--- a/docs/help/negate_subtract.html
+++ b/docs/help/negate_subtract.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="minus--"><a class="header" href="#minus--">Minus (<code><span class='Function'>-</span></code>)</a></h1>
-<h2 id="---negate"><a class="header" href="#---negate"><code><span class='Function'>-</span> <span class='Value'>𝕩</span></code>: Negate</a></h2>
+<h2 id="--𝕩-negate"><a class="header" href="#--𝕩-negate"><code><span class='Function'>-</span> <span class='Value'>𝕩</span></code>: Negate</a></h2>
 <p>Additive Inverse of <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAtIDEKCiAgLSDCrzE=">↗️</a><pre>      <span class='Function'>-</span> <span class='Number'>1</span>
@@ -14,7 +14,7 @@
       <span class='Function'>-</span> <span class='Number'>¯1</span>
 1
 </pre>
-<h2 id="----subtract"><a class="header" href="#----subtract"><code><span class='Value'>𝕨</span> <span class='Function'>-</span> <span class='Value'>𝕩</span></code>: Subtract</a></h2>
+<h2 id="𝕨---𝕩-subtract"><a class="header" href="#𝕨---𝕩-subtract"><code><span class='Value'>𝕨</span> <span class='Function'>-</span> <span class='Value'>𝕩</span></code>: Subtract</a></h2>
 <p>Subtract <code><span class='Value'>𝕩</span></code> from <code><span class='Value'>𝕨</span></code>. <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> can be characters or integers.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIC0gMgoKICAxIC0gMuKAvzPigL80CgogICdhJyAtIDQKCiAgJ2InIC0gJ2En">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>-</span> <span class='Number'>2</span>
diff --git a/docs/help/not_span.html b/docs/help/not_span.html
index 219f57da..12e646e4 100644
--- a/docs/help/not_span.html
+++ b/docs/help/not_span.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="not-"><a class="header" href="#not-">Not (<code><span class='Function'>¬</span></code>)</a></h1>
-<h2 id="--logical-not"><a class="header" href="#--logical-not"><code><span class='Function'>¬</span> <span class='Value'>𝕩</span></code>: Logical Not</a></h2>
+<h2 id="-𝕩-logical-not"><a class="header" href="#-𝕩-logical-not"><code><span class='Function'>¬</span> <span class='Value'>𝕩</span></code>: Logical Not</a></h2>
 <p>Logical Not of <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDCrCAwCgogIMKsIDHigL8w">↗️</a><pre>      <span class='Function'>¬</span> <span class='Number'>0</span>
@@ -14,7 +14,7 @@
       <span class='Function'>¬</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>0</span>
 ⟨ 0 1 ⟩
 </pre>
-<h2 id="---span"><a class="header" href="#---span"><code><span class='Value'>𝕨</span> <span class='Function'>¬</span> <span class='Value'>𝕩</span></code>: Span</a></h2>
+<h2 id="𝕨--𝕩-span"><a class="header" href="#𝕨--𝕩-span"><code><span class='Value'>𝕨</span> <span class='Function'>¬</span> <span class='Value'>𝕩</span></code>: Span</a></h2>
 <p>Count of numbers in the inclusive range from <code><span class='Value'>𝕩</span></code> to <code><span class='Value'>𝕨</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAzIMKsIDEKCiAgM+KAvzQgwqwgMOKAvzI=">↗️</a><pre>      <span class='Number'>3</span> <span class='Function'>¬</span> <span class='Number'>1</span>
diff --git a/docs/help/occurrencecount_progressiveindexof.html b/docs/help/occurrencecount_progressiveindexof.html
index 11b940f2..8bace1ab 100644
--- a/docs/help/occurrencecount_progressiveindexof.html
+++ b/docs/help/occurrencecount_progressiveindexof.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="square-original-of-or-equal-to-"><a class="header" href="#square-original-of-or-equal-to-">Square Original Of or Equal To (<code><span class='Function'>⊒</span></code>)</a></h1>
-<h2 id="--occurrence-count"><a class="header" href="#--occurrence-count"><code><span class='Function'>⊒</span> <span class='Value'>𝕩</span></code>: Occurrence Count</a></h2>
+<h2 id="-𝕩-occurrence-count"><a class="header" href="#-𝕩-occurrence-count"><code><span class='Function'>⊒</span> <span class='Value'>𝕩</span></code>: Occurrence Count</a></h2>
 <p>Number of times each major cell of <code><span class='Value'>𝕩</span></code> appears before itself.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgIOKKkiAgIDLigL834oC/MeKAvzjigL8x4oC/N+KAvzHigL844oC/MuKAvzjigL80CgogICAg4omN4p+c4oqSIDLigL834oC/MeKAvzjigL8x4oC/N+KAvzHigL844oC/MuKAvzjigL80">↗️</a><pre>        <span class='Function'>⊒</span>   <span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>7</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>8</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>7</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>8</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>8</span><span class='Ligature'>‿</span><span class='Number'>4</span>
 ⟨ 0 0 0 0 1 1 2 1 1 2 0 ⟩
@@ -16,7 +16,7 @@
   0 0 0 0 1 1 2 1 1 2 0  
                         ┘
 </pre>
-<h2 id="---progressive-index-of"><a class="header" href="#---progressive-index-of"><code><span class='Value'>𝕨</span> <span class='Function'>⊒</span> <span class='Value'>𝕩</span></code>: Progressive Index Of</a></h2>
+<h2 id="𝕨--𝕩-progressive-index-of"><a class="header" href="#𝕨--𝕩-progressive-index-of"><code><span class='Value'>𝕨</span> <span class='Function'>⊒</span> <span class='Value'>𝕩</span></code>: Progressive Index Of</a></h2>
 <p>Index of the first unused match of each major cell of <code><span class='Value'>𝕩</span></code> in <code><span class='Value'>𝕨</span></code>. If there are no more matches left, length of <code><span class='Value'>𝕨</span></code> is placed in that position.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgICJhYWEiIOKKkiAiYWFhYWEiCgogICAgImFhYWJiIiDiipIgImFiYWJhYmFiYWIi">↗️</a><pre>        <span class='String'>&quot;aaa&quot;</span> <span class='Function'>⊒</span> <span class='String'>&quot;aaaaa&quot;</span>
 ⟨ 0 1 2 3 3 ⟩
diff --git a/docs/help/over.html b/docs/help/over.html
index 39b6959b..f8f9d6ed 100644
--- a/docs/help/over.html
+++ b/docs/help/over.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-"><a class="header" href="#circle-">Circle (<code><span class='Modifier2'>○</span></code>)</a></h1>
-<h2 id="--atop"><a class="header" href="#--atop"><code><span class='Function'>𝔽</span><span class='Modifier2'>○</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Atop</a></h2>
+<h2 id="𝔽𝔾-𝕩-atop"><a class="header" href="#𝔽𝔾-𝕩-atop"><code><span class='Function'>𝔽</span><span class='Modifier2'>○</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Atop</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕩</span></code>, then apply <code><span class='Function'>𝔽</span></code> (<code><span class='Function'>𝔽</span> <span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> and <code><span class='Function'>𝔾</span></code> must be monadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgLeKXiy0gNQoKICAgLSAtIDU=">↗️</a><pre>       <span class='Function'>-</span><span class='Modifier2'>○</span><span class='Function'>-</span> <span class='Number'>5</span>
@@ -14,7 +14,7 @@
        <span class='Function'>-</span> <span class='Function'>-</span> <span class='Number'>5</span>
 5
 </pre>
-<h2 id="---over"><a class="header" href="#---over"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>○</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Over</a></h2>
+<h2 id="𝕨-𝔽𝔾-𝕩-over"><a class="header" href="#𝕨-𝔽𝔾-𝕩-over"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>○</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Over</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>, then apply <code><span class='Function'>𝔽</span></code> to them (<code><span class='Paren'>(</span><span class='Function'>𝔾</span> <span class='Value'>𝕨</span><span class='Paren'>)</span> <span class='Function'>𝔽</span> <span class='Paren'>(</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span><span class='Paren'>)</span></code>).</p>
 <p><code><span class='Function'>𝔽</span></code> must be dyadic, <code><span class='Function'>𝔾</span></code> must be monadic.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSAr4peLLSAyCgogICAxICsgLSAyCgogICAoLSAxKSArICgtIDIp">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>+</span><span class='Modifier2'>○</span><span class='Function'>-</span> <span class='Number'>2</span>
diff --git a/docs/help/pi.html b/docs/help/pi.html
index cc06f8a3..1ed7b0b5 100644
--- a/docs/help/pi.html
+++ b/docs/help/pi.html
@@ -4,8 +4,8 @@
   <title>BQN: Pi (π)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="pi-"><a class="header" href="#pi-">Pi (<code><span class='Number'>π</span></code>)</a></h1>
-<h2 id="-pi"><a class="header" href="#-pi"><code><span class='Number'>π</span></code>: Pi</a></h2>
+<h1 id="pi-π"><a class="header" href="#pi-π">Pi (<code><span class='Number'>π</span></code>)</a></h1>
+<h2 id="π-pi"><a class="header" href="#π-pi"><code><span class='Number'>π</span></code>: Pi</a></h2>
 <p>Mathematical constant pi. Shares the same status as other numbers, can be negative (<code><span class='Number'>¯π</span></code>).</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=z4AKCsKvz4A=">↗️</a><pre>    <span class='Number'>π</span>
 3.141592653589793
diff --git a/docs/help/prefixes_take.html b/docs/help/prefixes_take.html
index 3b8395bf..f483e038 100644
--- a/docs/help/prefixes_take.html
+++ b/docs/help/prefixes_take.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="up-arrow-"><a class="header" href="#up-arrow-">Up Arrow (<code><span class='Function'>↑</span></code>)</a></h1>
-<h2 id="--prefixes"><a class="header" href="#--prefixes"><code><span class='Function'>↑</span> <span class='Value'>𝕩</span></code>: Prefixes</a></h2>
+<h2 id="-𝕩-prefixes"><a class="header" href="#-𝕩-prefixes"><code><span class='Function'>↑</span> <span class='Value'>𝕩</span></code>: Prefixes</a></h2>
 <p>Prefixes of array <code><span class='Value'>𝕩</span></code> along its first axis.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oaRIDHigL8y4oC/M+KAvzQKCiAgIGEg4oaQIDPigL8zIOKliiDihpU5CgogICDihpEgYQ==">↗️</a><pre>       <span class='Function'>↑</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
 ⟨ ⟨⟩ ⟨ 1 ⟩ ⟨ 1 2 ⟩ ⟨ 1 2 3 ⟩ ⟨ 1 2 3 4 ⟩ ⟩
@@ -21,7 +21,7 @@
                                    ┘  
                                      ┘
 </pre>
-<h2 id="---take"><a class="header" href="#---take"><code><span class='Value'>𝕨</span> <span class='Function'>↑</span> <span class='Value'>𝕩</span></code>: Take</a></h2>
+<h2 id="𝕨--𝕩-take"><a class="header" href="#𝕨--𝕩-take"><code><span class='Value'>𝕨</span> <span class='Function'>↑</span> <span class='Value'>𝕩</span></code>: Take</a></h2>
 <p>For each integer in <code><span class='Value'>𝕨</span></code>, take that many elements from each dimension of <code><span class='Value'>𝕩</span></code>.</p>
 <p>Negative numbers take from the end.</p>
 <p>If any of the elements in <code><span class='Value'>𝕨</span></code> are greater than the length of their respective dimension, the dimension is extended with a fill value.</p>
diff --git a/docs/help/range_windows.html b/docs/help/range_windows.html
index 1f6d2454..e480c331 100644
--- a/docs/help/range_windows.html
+++ b/docs/help/range_windows.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="up-down-arrow-"><a class="header" href="#up-down-arrow-">Up Down Arrow (<code><span class='Function'>↕</span></code>)</a></h1>
-<h2 id="--range"><a class="header" href="#--range"><code><span class='Function'>↕</span> <span class='Value'>𝕩</span></code>: Range</a></h2>
+<h2 id="-𝕩-range"><a class="header" href="#-𝕩-range"><code><span class='Function'>↕</span> <span class='Value'>𝕩</span></code>: Range</a></h2>
 <p>Return all indices to index into an array of shape <code><span class='Value'>𝕩</span></code>, in the shape described by <code><span class='Value'>𝕩</span></code>.</p>
 <p>When given a single number, range from 0 to <code><span class='Value'>𝕩</span><span class='Function'>-</span><span class='Number'>1</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oaVIDQKCiAgIOKGlSA04oC/NQ==">↗️</a><pre>       <span class='Function'>↕</span> <span class='Number'>4</span>
@@ -19,7 +19,7 @@
   ⟨ 3 0 ⟩ ⟨ 3 1 ⟩ ⟨ 3 2 ⟩ ⟨ 3 3 ⟩ ⟨ 3 4 ⟩  
                                           ┘
 </pre>
-<h2 id="---windows"><a class="header" href="#---windows"><code><span class='Value'>𝕨</span> <span class='Function'>↕</span> <span class='Value'>𝕩</span></code>: Windows</a></h2>
+<h2 id="𝕨--𝕩-windows"><a class="header" href="#𝕨--𝕩-windows"><code><span class='Value'>𝕨</span> <span class='Function'>↕</span> <span class='Value'>𝕩</span></code>: Windows</a></h2>
 <p>Overlapping slices of <code><span class='Value'>𝕩</span></code> which are of shape <code><span class='Value'>𝕨</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNSDihpUgImFiY2RlZmciCgogICBhIOKGkCAz4oC/M+KliuKGlTkKCiAgIDLigL8yIOKGlSBh">↗️</a><pre>       <span class='Number'>5</span> <span class='Function'>↕</span> <span class='String'>&quot;abcdefg&quot;</span>
 ┌─       
diff --git a/docs/help/rank.html b/docs/help/rank.html
index cf5507a7..22fe0673 100644
--- a/docs/help/rank.html
+++ b/docs/help/rank.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circled-horizontal-bar-with-notch-"><a class="header" href="#circled-horizontal-bar-with-notch-">Circled Horizontal Bar With Notch (<code><span class='Modifier2'>⎉</span></code>)</a></h1>
-<h2 id="-----rank"><a class="header" href="#-----rank"><code><span class='Function'>𝔽</span><span class='Modifier2'>⎉</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⎉</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Rank</a></h2>
+<h2 id="𝔽𝕘-𝕩-𝕨-𝔽𝕘-𝕩-rank"><a class="header" href="#𝔽𝕘-𝕩-𝕨-𝔽𝕘-𝕩-rank"><code><span class='Function'>𝔽</span><span class='Modifier2'>⎉</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⎉</span><span class='Value'>𝕘</span> <span class='Value'>𝕩</span></code>: Rank</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to cells at ranks given in <code><span class='Value'>𝕘</span></code>.</p>
 <p>The ranks applied are given by the following:</p>
 <ul>
diff --git a/docs/help/rank_equals.html b/docs/help/rank_equals.html
index de19fe62..fdb2053a 100644
--- a/docs/help/rank_equals.html
+++ b/docs/help/rank_equals.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="equal-"><a class="header" href="#equal-">Equal (<code><span class='Function'>=</span></code>)</a></h1>
-<h2 id="--rank"><a class="header" href="#--rank"><code><span class='Function'>=</span> <span class='Value'>𝕩</span></code>: Rank</a></h2>
+<h2 id="-𝕩-rank"><a class="header" href="#-𝕩-rank"><code><span class='Function'>=</span> <span class='Value'>𝕩</span></code>: Rank</a></h2>
 <p>Returns the number of dimensions in <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICA9IDAKCiAgPSAz4qWKMAoKICA9IDPigL8z4qWKMAoKICAz4oC/M+KAvzMg4qWKIOKfqOKfqDDin6nin6k=">↗️</a><pre>      <span class='Function'>=</span> <span class='Number'>0</span>
 0
@@ -31,7 +31,7 @@
   ⟨ 0 ⟩ ⟨ 0 ⟩ ⟨ 0 ⟩  
                     ┘
 </pre>
-<h2 id="---equal-to"><a class="header" href="#---equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>=</span> <span class='Value'>𝕩</span></code>: Equal To</a></h2>
+<h2 id="𝕨--𝕩-equal-to"><a class="header" href="#𝕨--𝕩-equal-to"><code><span class='Value'>𝕨</span> <span class='Function'>=</span> <span class='Value'>𝕩</span></code>: Equal To</a></h2>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxID0gMwoKICAy4oC/M+KAvzAgPSAz4oC/MeKAvzAKCiAgJ2EnID0gJ2En">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>=</span> <span class='Number'>3</span>
 0
diff --git a/docs/help/reciprocal_divide.html b/docs/help/reciprocal_divide.html
index 35e7c8a3..c0e4eb07 100644
--- a/docs/help/reciprocal_divide.html
+++ b/docs/help/reciprocal_divide.html
@@ -5,13 +5,13 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="divide-"><a class="header" href="#divide-">Divide (<code><span class='Function'>÷</span></code>)</a></h1>
-<h2 id="--reciprocal"><a class="header" href="#--reciprocal"><code><span class='Function'>÷</span> <span class='Value'>𝕩</span></code>: Reciprocal</a></h2>
+<h2 id="-𝕩-reciprocal"><a class="header" href="#-𝕩-reciprocal"><code><span class='Function'>÷</span> <span class='Value'>𝕩</span></code>: Reciprocal</a></h2>
 <p>Gives <code><span class='Number'>1</span> <span class='Function'>÷</span> <span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDDtyA1">↗️</a><pre>      <span class='Function'>÷</span> <span class='Number'>5</span>
 0.2
 </pre>
-<h2 id="---divide"><a class="header" href="#---divide"><code><span class='Value'>𝕨</span> <span class='Function'>÷</span> <span class='Value'>𝕩</span></code>: Divide</a></h2>
+<h2 id="𝕨--𝕩-divide"><a class="header" href="#𝕨--𝕩-divide"><code><span class='Value'>𝕨</span> <span class='Function'>÷</span> <span class='Value'>𝕩</span></code>: Divide</a></h2>
 <p><code><span class='Value'>𝕨</span></code> divided by <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=NSDDtyA0CgoxNCDDtyA3">↗️</a><pre>    <span class='Number'>5</span> <span class='Function'>÷</span> <span class='Number'>4</span>
diff --git a/docs/help/repeat.html b/docs/help/repeat.html
index 100bd413..67d8e002 100644
--- a/docs/help/repeat.html
+++ b/docs/help/repeat.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-star-"><a class="header" href="#circle-star-">Circle Star (<code><span class='Modifier2'>⍟</span></code>)</a></h1>
-<h2 id="-----repeat"><a class="header" href="#-----repeat"><code><span class='Function'>𝔽</span><span class='Modifier2'>⍟</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⍟</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Repeat</a></h2>
+<h2 id="𝔽𝔾-𝕩-𝕨-𝔽𝔾-𝕩-repeat"><a class="header" href="#𝔽𝔾-𝕩-𝕨-𝔽𝔾-𝕩-repeat"><code><span class='Function'>𝔽</span><span class='Modifier2'>⍟</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⍟</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Repeat</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> and apply <code><span class='Function'>𝔽</span></code> to <code><span class='Value'>𝕩</span></code> that may times. If <code><span class='Value'>𝕨</span></code> is given, keep it as a constant left argument.</p>
 <p>If <code><span class='Function'>𝔾</span></code> returns an array, give <code><span class='Function'>𝔽</span><span class='Modifier2'>⍟</span><span class='Value'>𝕩</span></code> for each element.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSAr4o2f4oqiIDQKCiAgIDEgK+KNnzHigL8y4oC/MyA0CgogICAzIOKIvuKNn3viiaDwnZWpfSDin6g0LDUsNuKfqQ==">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>+</span><span class='Modifier2'>⍟</span><span class='Function'>⊢</span> <span class='Number'>4</span>
diff --git a/docs/help/reverse_rotate.html b/docs/help/reverse_rotate.html
index 3ffc2c3f..e1885019 100644
--- a/docs/help/reverse_rotate.html
+++ b/docs/help/reverse_rotate.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-stile-"><a class="header" href="#circle-stile-">Circle Stile (<code><span class='Function'>⌽</span></code>)</a></h1>
-<h2 id="--reverse"><a class="header" href="#--reverse"><code><span class='Function'>⌽</span> <span class='Value'>𝕩</span></code>: Reverse</a></h2>
+<h2 id="-𝕩-reverse"><a class="header" href="#-𝕩-reverse"><code><span class='Function'>⌽</span> <span class='Value'>𝕩</span></code>: Reverse</a></h2>
 <p>Reverse the first axis of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oy9IDHigL8y4oC/MwoKICAgYSDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIOKMvSBh">↗️</a><pre>       <span class='Function'>⌽</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 3 2 1 ⟩
@@ -19,7 +19,7 @@
   0 1 2  
         ┘
 </pre>
-<h2 id="---dyad"><a class="header" href="#---dyad"><code><span class='Value'>𝕨</span> <span class='Function'>⌽</span> <span class='Value'>𝕩</span></code>: Dyad</a></h2>
+<h2 id="𝕨--𝕩-dyad"><a class="header" href="#𝕨--𝕩-dyad"><code><span class='Value'>𝕨</span> <span class='Function'>⌽</span> <span class='Value'>𝕩</span></code>: Dyad</a></h2>
 <p>Move the first <code><span class='Value'>𝕨</span></code> elements of <code><span class='Value'>𝕩</span></code> to its end. Negative <code><span class='Value'>𝕨</span></code> reverses the direction of rotation.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMiDijL0gMeKAvzLigL8zCgogICBiIOKGkCAz4oC/MyDipYog4oaVOQoKICAgMiDijL0gYg==">↗️</a><pre>       <span class='Number'>2</span> <span class='Function'>⌽</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 3 1 2 ⟩
diff --git a/docs/help/rightargument.html b/docs/help/rightargument.html
index 30490f54..c2f8885a 100644
--- a/docs/help/rightargument.html
+++ b/docs/help/rightargument.html
@@ -4,8 +4,8 @@
   <title>BQN: Mathematical Double-struck X (𝕩)</title>
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
-<h1 id="mathematical-double-struck-x-"><a class="header" href="#mathematical-double-struck-x-">Mathematical Double-struck X (<code><span class='Value'>𝕩</span></code>)</a></h1>
-<h2 id="-right-argument"><a class="header" href="#-right-argument"><code><span class='Value'>𝕩</span></code>: Right Argument</a></h2>
+<h1 id="mathematical-double-struck-x-𝕩"><a class="header" href="#mathematical-double-struck-x-𝕩">Mathematical Double-struck X (<code><span class='Value'>𝕩</span></code>)</a></h1>
+<h2 id="𝕩-right-argument"><a class="header" href="#𝕩-right-argument"><code><span class='Value'>𝕩</span></code>: Right Argument</a></h2>
 <p>A variable assigned to the right argument of a block. <code><span class='Function'>𝕏</span></code> can be used to access the right argument as a function.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=NSB78J2VqX0gMQ==">↗️</a><pre>    <span class='Number'>5</span> <span class='Brace'>{</span><span class='Value'>𝕩</span><span class='Brace'>}</span> <span class='Number'>1</span>
 1
diff --git a/docs/help/scan.html b/docs/help/scan.html
index c68b6fd2..464d9fa7 100644
--- a/docs/help/scan.html
+++ b/docs/help/scan.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="grave---"><a class="header" href="#grave---">Grave (<code><span class='Modifier'>`</span></code>)</a></h1>
-<h2 id="--scan"><a class="header" href="#--scan"><code><span class='Function'>𝔽</span><span class='Modifier'>`</span> <span class='Value'>𝕩</span></code>: Scan</a></h2>
+<h2 id="𝔽-𝕩-scan"><a class="header" href="#𝔽-𝕩-scan"><code><span class='Function'>𝔽</span><span class='Modifier'>`</span> <span class='Value'>𝕩</span></code>: Scan</a></h2>
 <p>Scan over <code><span class='Value'>𝕩</span></code> with <code><span class='Function'>𝔽</span></code> from left to right, producing intermediate values.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgK2AgMeKAvzLigL8zCgogICDin6gxLCAxKzIsICgxKzIpKzPin6kKCiAgIC1gIDHigL8y4oC/MwoKICAg4p+oMSwgMS0yLCAoMS0yKS0z4p+p">↗️</a><pre>       <span class='Function'>+</span><span class='Modifier'>`</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 1 3 6 ⟩
@@ -19,7 +19,7 @@
        <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Separator'>,</span> <span class='Number'>1</span><span class='Function'>-</span><span class='Number'>2</span><span class='Separator'>,</span> <span class='Paren'>(</span><span class='Number'>1</span><span class='Function'>-</span><span class='Number'>2</span><span class='Paren'>)</span><span class='Function'>-</span><span class='Number'>3</span><span class='Bracket'>⟩</span>
 ⟨ 1 ¯1 ¯4 ⟩
 </pre>
-<h2 id="---scan-with-initial"><a class="header" href="#---scan-with-initial"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>`</span> <span class='Value'>𝕩</span></code>: Scan With initial</a></h2>
+<h2 id="𝕨-𝔽-𝕩-scan-with-initial"><a class="header" href="#𝕨-𝔽-𝕩-scan-with-initial"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>`</span> <span class='Value'>𝕩</span></code>: Scan With initial</a></h2>
 <p>Monadic scan, but use <code><span class='Value'>𝕨</span></code> as initial left argument.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNSArYCAx4oC/MuKAvzMKCiAgIOKfqDUrMSwgKDUrMSkrMiwgKCg1KzEpKzIpKzPin6kKCiAgIDUgLWAgMeKAvzLigL8zCgogICDin6g1LTEsICg1LTEpLTIsICgoNS0xKS0yKS0z4p+p">↗️</a><pre>       <span class='Number'>5</span> <span class='Function'>+</span><span class='Modifier'>`</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 6 8 11 ⟩
diff --git a/docs/help/self_swap.html b/docs/help/self_swap.html
index 08babae9..e06b0def 100644
--- a/docs/help/self_swap.html
+++ b/docs/help/self_swap.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="small-tilde-"><a class="header" href="#small-tilde-">Small Tilde (<code><span class='Modifier'>˜</span></code>)</a></h1>
-<h2 id="--self"><a class="header" href="#--self"><code><span class='Function'>𝔽</span><span class='Modifier'>˜</span> <span class='Value'>𝕩</span></code>: Self</a></h2>
+<h2 id="𝔽-𝕩-self"><a class="header" href="#𝔽-𝕩-self"><code><span class='Function'>𝔽</span><span class='Modifier'>˜</span> <span class='Value'>𝕩</span></code>: Self</a></h2>
 <p>Supplies <code><span class='Value'>𝕩</span></code> as a left argument to <code><span class='Function'>𝔽</span></code> (<code><span class='Value'>𝕩</span> <span class='Function'>𝔽</span> <span class='Value'>𝕩</span></code>).</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSArIDEKCiAgICvLnCAx">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>+</span> <span class='Number'>1</span>
 2
@@ -13,7 +13,7 @@
        <span class='Function'>+</span><span class='Modifier'>˜</span> <span class='Number'>1</span>
 2
 </pre>
-<h2 id="---swap"><a class="header" href="#---swap"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˜</span> <span class='Value'>𝕩</span></code>: Swap</a></h2>
+<h2 id="𝕨-𝔽-𝕩-swap"><a class="header" href="#𝕨-𝔽-𝕩-swap"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>˜</span> <span class='Value'>𝕩</span></code>: Swap</a></h2>
 <p>Swaps the arguments of <code><span class='Function'>𝔽</span></code> (<code><span class='Value'>𝕩</span> <span class='Function'>𝔽</span> <span class='Value'>𝕨</span></code>).</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSAtIDIKCiAgIDEgLcucIDI=">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>-</span> <span class='Number'>2</span>
 ¯1
diff --git a/docs/help/shape_notmatch.html b/docs/help/shape_notmatch.html
index 691cc79d..f45a943f 100644
--- a/docs/help/shape_notmatch.html
+++ b/docs/help/shape_notmatch.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="not-identical-to-"><a class="header" href="#not-identical-to-">Not Identical To (<code><span class='Function'>≢</span></code>)</a></h1>
-<h2 id="--shape"><a class="header" href="#--shape"><code><span class='Function'>≢</span> <span class='Value'>𝕩</span></code>: Shape</a></h2>
+<h2 id="-𝕩-shape"><a class="header" href="#-𝕩-shape"><code><span class='Function'>≢</span> <span class='Value'>𝕩</span></code>: Shape</a></h2>
 <p>Length of each dimension of x.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiaIgMQoKICDiiaIgMeKAvzIKCiAg4omiIDHigL8yIOKJjSAz4oC/NA==">↗️</a><pre>      <span class='Function'>≢</span> <span class='Number'>1</span>
 ⟨⟩
@@ -16,7 +16,7 @@
       <span class='Function'>≢</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span> <span class='Function'>≍</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
 ⟨ 2 2 ⟩
 </pre>
-<h2 id="---not-match"><a class="header" href="#---not-match"><code><span class='Value'>𝕨</span> <span class='Function'>≢</span> <span class='Value'>𝕩</span></code>: Not Match</a></h2>
+<h2 id="𝕨--𝕩-not-match"><a class="header" href="#𝕨--𝕩-not-match"><code><span class='Value'>𝕨</span> <span class='Function'>≢</span> <span class='Value'>𝕩</span></code>: Not Match</a></h2>
 <p>Does <code><span class='Value'>𝕨</span></code> not exactly match <code><span class='Value'>𝕩</span></code>?</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKJoiDin6gx4p+pCgogIOKfqDHin6kg4omiIOKfqDHin6k=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>≢</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Bracket'>⟩</span>
 1
diff --git a/docs/help/shiftafter.html b/docs/help/shiftafter.html
index 51c7a7df..44d6a658 100644
--- a/docs/help/shiftafter.html
+++ b/docs/help/shiftafter.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="right-pointing-double-angle-quotation-"><a class="header" href="#right-pointing-double-angle-quotation-">Right Pointing Double Angle Quotation (<code><span class='Function'>»</span></code>)</a></h1>
-<h2 id="--shift-after"><a class="header" href="#--shift-after"><code><span class='Function'>»</span> <span class='Value'>𝕩</span></code>: Shift After</a></h2>
+<h2 id="-𝕩-shift-after"><a class="header" href="#-𝕩-shift-after"><code><span class='Function'>»</span> <span class='Value'>𝕩</span></code>: Shift After</a></h2>
 <p>Remove the last element of <code><span class='Value'>𝕩</span></code>, add a cell of fill values to the start of the first axis of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgwrsgMeKAvzLigL8zCgogICDCuyAz4oC/MyDipYogOQ==">↗️</a><pre>       <span class='Function'>»</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 0 1 2 ⟩
@@ -17,7 +17,7 @@
   9 9 9  
         ┘
 </pre>
-<h2 id="---shift-after"><a class="header" href="#---shift-after"><code><span class='Value'>𝕨</span> <span class='Function'>»</span> <span class='Value'>𝕩</span></code>: Shift After</a></h2>
+<h2 id="𝕨--𝕩-shift-after"><a class="header" href="#𝕨--𝕩-shift-after"><code><span class='Value'>𝕨</span> <span class='Function'>»</span> <span class='Value'>𝕩</span></code>: Shift After</a></h2>
 <p>Remove the last <code><span class='Function'>≠</span><span class='Value'>𝕨</span></code> (length) major cells from <code><span class='Value'>𝕩</span></code>, join <code><span class='Value'>𝕨</span></code> to the start of <code><span class='Value'>𝕩</span></code>. Ranks must match.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNzggwrsgMeKAvzLigL8zCgogICAx4oC/MiDCuyAx4oC/MuKAvzMKCiAgIGEg4oaQIDPigL8zIOKliiA5CgogICAx4oC/MuKAvzMgwrsgYQ==">↗️</a><pre>       <span class='Number'>78</span> <span class='Function'>»</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 78 1 2 ⟩
diff --git a/docs/help/shiftbefore.html b/docs/help/shiftbefore.html
index 3530a391..5b5fa049 100644
--- a/docs/help/shiftbefore.html
+++ b/docs/help/shiftbefore.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="left-pointing-double-angle-quotation-"><a class="header" href="#left-pointing-double-angle-quotation-">Left Pointing Double Angle Quotation (<code><span class='Function'>«</span></code>)</a></h1>
-<h2 id="--shift-before"><a class="header" href="#--shift-before"><code><span class='Function'>«</span> <span class='Value'>𝕩</span></code>: Shift Before</a></h2>
+<h2 id="-𝕩-shift-before"><a class="header" href="#-𝕩-shift-before"><code><span class='Function'>«</span> <span class='Value'>𝕩</span></code>: Shift Before</a></h2>
 <p>Remove the first element of <code><span class='Value'>𝕩</span></code>,  add a cell of fill values to the end of the first axis of <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNzggwqsgMeKAvzLigL8zCgogICDCqyAx4oC/MuKAvzMKCiAgIMKrIDPigL8zIOKliiA5">↗️</a><pre>       <span class='Number'>78</span> <span class='Function'>«</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 2 3 78 ⟩
@@ -20,7 +20,7 @@
   0 0 0  
         ┘
 </pre>
-<h2 id="---shift-before"><a class="header" href="#---shift-before"><code><span class='Value'>𝕨</span> <span class='Function'>«</span> <span class='Value'>𝕩</span></code>: Shift Before</a></h2>
+<h2 id="𝕨--𝕩-shift-before"><a class="header" href="#𝕨--𝕩-shift-before"><code><span class='Value'>𝕨</span> <span class='Function'>«</span> <span class='Value'>𝕩</span></code>: Shift Before</a></h2>
 <p>Remove the first <code><span class='Function'>≠</span><span class='Value'>𝕨</span></code> (length) major cells from <code><span class='Value'>𝕩</span></code>, join <code><span class='Value'>𝕨</span></code> to the end of <code><span class='Value'>𝕩</span></code>. Ranks must match.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgOOKAvzUgwqsgMeKAvzLigL8zCgogICBhIOKGkCAz4oC/MyDipYogOQoKICAgMeKAvzLigL8zIMKrIGE=">↗️</a><pre>       <span class='Number'>8</span><span class='Ligature'>‿</span><span class='Number'>5</span> <span class='Function'>«</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
 ⟨ 3 8 5 ⟩
diff --git a/docs/help/sign_multiply.html b/docs/help/sign_multiply.html
index eca5ad38..11cb1998 100644
--- a/docs/help/sign_multiply.html
+++ b/docs/help/sign_multiply.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="times-"><a class="header" href="#times-">Times (<code><span class='Function'>×</span></code>)</a></h1>
-<h2 id="--sign"><a class="header" href="#--sign"><code><span class='Function'>×</span> <span class='Value'>𝕩</span></code>: Sign</a></h2>
+<h2 id="-𝕩-sign"><a class="header" href="#-𝕩-sign"><code><span class='Function'>×</span> <span class='Value'>𝕩</span></code>: Sign</a></h2>
 <p>Sign of <code><span class='Value'>𝕩</span></code>.</p>
 <ul>
 <li><code><span class='Number'>¯1</span></code> if <code><span class='Value'>𝕩</span> <span class='Function'>&lt;</span> <span class='Number'>0</span></code></li>
@@ -16,7 +16,7 @@
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDDlyDCrzXigL8w4oC/NeKAvzE=">↗️</a><pre>      <span class='Function'>×</span> <span class='Number'>¯5</span><span class='Ligature'>‿</span><span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>1</span>
 ⟨ ¯1 0 1 1 ⟩
 </pre>
-<h2 id="---multiply"><a class="header" href="#---multiply"><code><span class='Value'>𝕨</span> <span class='Function'>×</span> <span class='Value'>𝕩</span></code>: Multiply</a></h2>
+<h2 id="𝕨--𝕩-multiply"><a class="header" href="#𝕨--𝕩-multiply"><code><span class='Value'>𝕨</span> <span class='Function'>×</span> <span class='Value'>𝕩</span></code>: Multiply</a></h2>
 <p><code><span class='Value'>𝕨</span></code> multiplied by <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIMOXIDIKCiAgMiDDlyAy4oC/M+KAvzQ=">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>×</span> <span class='Number'>2</span>
diff --git a/docs/help/solo_couple.html b/docs/help/solo_couple.html
index f462b9a4..ad526c1c 100644
--- a/docs/help/solo_couple.html
+++ b/docs/help/solo_couple.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="tape-"><a class="header" href="#tape-">Tape (<code><span class='Function'>≍</span></code>)</a></h1>
-<h2 id="--solo"><a class="header" href="#--solo"><code><span class='Function'>≍</span> <span class='Value'>𝕩</span></code>: Solo</a></h2>
+<h2 id="-𝕩-solo"><a class="header" href="#-𝕩-solo"><code><span class='Function'>≍</span> <span class='Value'>𝕩</span></code>: Solo</a></h2>
 <p>Add a dimension to <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiY0gMQoKCiAg4omN4omNIDEKCgog4omN4omN4omNIDEKCgog4omN4omNIDHigL8y4oC/M+KAvzQKCgog4omN4omN4omNIDHigL8y4oC/M+KAvzQ=">↗️</a><pre>      <span class='Function'>≍</span> <span class='Number'>1</span>
 ⟨ 1 ⟩
@@ -34,7 +34,7 @@
 ┆ 1 2 3 4  
           ┘
 </pre>
-<h2 id="---couple"><a class="header" href="#---couple"><code><span class='Value'>𝕨</span> <span class='Function'>≍</span> <span class='Value'>𝕩</span></code>: Couple</a></h2>
+<h2 id="𝕨--𝕩-couple"><a class="header" href="#𝕨--𝕩-couple"><code><span class='Value'>𝕨</span> <span class='Function'>≍</span> <span class='Value'>𝕩</span></code>: Couple</a></h2>
 <p>Join <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> along a newly created axis.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSDiiY0gMwoKICAgMeKAvzIg4omNIDLigL8z">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>≍</span> <span class='Number'>3</span>
 ⟨ 1 3 ⟩
diff --git a/docs/help/sortdown_or.html b/docs/help/sortdown_or.html
index 93125592..ef55b509 100644
--- a/docs/help/sortdown_or.html
+++ b/docs/help/sortdown_or.html
@@ -5,12 +5,12 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="logical-or-"><a class="header" href="#logical-or-">Logical Or (<code><span class='Function'>∨</span></code>)</a></h1>
-<h2 id="--sort-down"><a class="header" href="#--sort-down"><code><span class='Function'>∨</span> <span class='Value'>𝕩</span></code>: Sort Down</a></h2>
+<h2 id="-𝕩-sort-down"><a class="header" href="#-𝕩-sort-down"><code><span class='Function'>∨</span> <span class='Value'>𝕩</span></code>: Sort Down</a></h2>
 <p>Sort array <code><span class='Value'>𝕩</span></code> in descending order.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiKggM+KAvzHigL804oC/MeKAvzU=">↗️</a><pre>      <span class='Function'>∨</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>5</span>
 ⟨ 5 4 3 1 1 ⟩
 </pre>
-<h2 id="---logical-or"><a class="header" href="#---logical-or"><code><span class='Value'>𝕨</span> <span class='Function'>∨</span> <span class='Value'>𝕩</span></code>: Logical Or</a></h2>
+<h2 id="𝕨--𝕩-logical-or"><a class="header" href="#𝕨--𝕩-logical-or"><code><span class='Value'>𝕨</span> <span class='Function'>∨</span> <span class='Value'>𝕩</span></code>: Logical Or</a></h2>
 <p>Logical Or of <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKIqCAwCgogIDHigL8wIOKIqCAx4oC/MQoKICAwIOKIqCAw">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>∨</span> <span class='Number'>0</span>
diff --git a/docs/help/sortup_and.html b/docs/help/sortup_and.html
index 670d7494..ede53653 100644
--- a/docs/help/sortup_and.html
+++ b/docs/help/sortup_and.html
@@ -5,12 +5,12 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="logical-and-"><a class="header" href="#logical-and-">Logical And (<code><span class='Function'>∧</span></code>)</a></h1>
-<h2 id="--sort-up"><a class="header" href="#--sort-up"><code><span class='Function'>∧</span> <span class='Value'>𝕩</span></code>: Sort Up</a></h2>
+<h2 id="-𝕩-sort-up"><a class="header" href="#-𝕩-sort-up"><code><span class='Function'>∧</span> <span class='Value'>𝕩</span></code>: Sort Up</a></h2>
 <p>Sort array <code><span class='Value'>𝕩</span></code> in ascending order.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiKcgM+KAvzHigL804oC/MeKAvzU=">↗️</a><pre>      <span class='Function'>∧</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>5</span>
 ⟨ 1 1 3 4 5 ⟩
 </pre>
-<h2 id="---logical-and"><a class="header" href="#---logical-and"><code><span class='Value'>𝕨</span> <span class='Function'>∧</span> <span class='Value'>𝕩</span></code>: Logical And</a></h2>
+<h2 id="𝕨--𝕩-logical-and"><a class="header" href="#𝕨--𝕩-logical-and"><code><span class='Value'>𝕨</span> <span class='Function'>∧</span> <span class='Value'>𝕩</span></code>: Logical And</a></h2>
 <p>Logical And of <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAxIOKIpyAxCgogIDHigL8wIOKIpyAx4oC/MQ==">↗️</a><pre>      <span class='Number'>1</span> <span class='Function'>∧</span> <span class='Number'>1</span>
diff --git a/docs/help/squareroot_root.html b/docs/help/squareroot_root.html
index ae46dceb..b685d544 100644
--- a/docs/help/squareroot_root.html
+++ b/docs/help/squareroot_root.html
@@ -5,12 +5,12 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="root-"><a class="header" href="#root-">Root (<code><span class='Function'>√</span></code>)</a></h1>
-<h2 id="--square-root"><a class="header" href="#--square-root"><code><span class='Function'>√</span> <span class='Value'>𝕩</span></code>: Square root</a></h2>
+<h2 id="-𝕩-square-root"><a class="header" href="#-𝕩-square-root"><code><span class='Function'>√</span> <span class='Value'>𝕩</span></code>: Square root</a></h2>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiJogMg==">↗️</a><pre>      <span class='Function'>√</span> <span class='Number'>2</span>
 1.414213562373095
 </pre>
-<h2 id="---root"><a class="header" href="#---root"><code><span class='Value'>𝕨</span> <span class='Function'>√</span> <span class='Value'>𝕩</span></code>: Root</a></h2>
+<h2 id="𝕨--𝕩-root"><a class="header" href="#𝕨--𝕩-root"><code><span class='Value'>𝕨</span> <span class='Function'>√</span> <span class='Value'>𝕩</span></code>: Root</a></h2>
 <p><code><span class='Value'>𝕨</span></code>th root of <code><span class='Value'>𝕩</span></code>.</p>
 <p><a href="../doc/arithmetic.html#pervasion">Pervasive.</a></p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAyIOKImiAyCgogIDHigL8y4oC/M+KAvzQg4oiaIDQ=">↗️</a><pre>      <span class='Number'>2</span> <span class='Function'>√</span> <span class='Number'>2</span>
diff --git a/docs/help/suffixes_drop.html b/docs/help/suffixes_drop.html
index 89b3c1c7..4cb1a36c 100644
--- a/docs/help/suffixes_drop.html
+++ b/docs/help/suffixes_drop.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="down-arrow-"><a class="header" href="#down-arrow-">Down Arrow (<code><span class='Function'>↓</span></code>)</a></h1>
-<h2 id="--suffixes"><a class="header" href="#--suffixes"><code><span class='Function'>↓</span> <span class='Value'>𝕩</span></code>: Suffixes</a></h2>
+<h2 id="-𝕩-suffixes"><a class="header" href="#-𝕩-suffixes"><code><span class='Function'>↓</span> <span class='Value'>𝕩</span></code>: Suffixes</a></h2>
 <p>Suffixes of array <code><span class='Value'>𝕩</span></code> along its first axis.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oaTIDHigL8y4oC/M+KAvzQKCiAgIGEg4oaQIDPigL8zIOKliiDihpU5CgogICDihpMgYQ==">↗️</a><pre>       <span class='Function'>↓</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
 ⟨ ⟨ 1 2 3 4 ⟩ ⟨ 2 3 4 ⟩ ⟨ 3 4 ⟩ ⟨ 4 ⟩ ⟨⟩ ⟩
@@ -21,7 +21,7 @@
           ┘                           
                                      ┘
 </pre>
-<h2 id="---drop"><a class="header" href="#---drop"><code><span class='Value'>𝕨</span> <span class='Function'>↓</span> <span class='Value'>𝕩</span></code>: Drop</a></h2>
+<h2 id="𝕨--𝕩-drop"><a class="header" href="#𝕨--𝕩-drop"><code><span class='Value'>𝕨</span> <span class='Function'>↓</span> <span class='Value'>𝕩</span></code>: Drop</a></h2>
 <p>For each integer in <code><span class='Value'>𝕨</span></code>, drop that many elements from the beginning of each dimension of <code><span class='Value'>𝕩</span></code>.</p>
 <p>Negative numbers drop from the end.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMyDihpMgMeKAvzPigL814oC/NjcKCiAgIGIg4oaQIDTigL80IOKliiDihpUxNgoKICAgM+KAvzMg4oaTIGIKCiAgIDXigL81IOKGkyBiCgoKICAgM+KAv8KvMyDihpMgYg==">↗️</a><pre>       <span class='Number'>3</span> <span class='Function'>↓</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>67</span>
diff --git a/docs/help/table.html b/docs/help/table.html
index 37fae089..30e52d2a 100644
--- a/docs/help/table.html
+++ b/docs/help/table.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="top-left-corner-"><a class="header" href="#top-left-corner-">Top Left Corner (<code><span class='Modifier'>⌜</span></code>)</a></h1>
-<h2 id="---each"><a class="header" href="#---each"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>⌜</span> <span class='Value'>𝕩</span></code>: Each</a></h2>
+<h2 id="𝕨-𝔽-𝕩-each"><a class="header" href="#𝕨-𝔽-𝕩-each"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>⌜</span> <span class='Value'>𝕩</span></code>: Each</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> between every possible pair of the elements of the arguments.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMeKAvzLigL8z4oC/NCAr4oycIDTigL814oC/NuKAvzcKCiAgICJhYmMiIOKIvuKMnCAieHl6Ig==">↗️</a><pre>       <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span> <span class='Function'>+</span><span class='Modifier'>⌜</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span><span class='Ligature'>‿</span><span class='Number'>7</span>
 ┌─           
diff --git a/docs/help/transpose_reorderaxes.html b/docs/help/transpose_reorderaxes.html
index 7761b874..42c50210 100644
--- a/docs/help/transpose_reorderaxes.html
+++ b/docs/help/transpose_reorderaxes.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-backslash-"><a class="header" href="#circle-backslash-">Circle Backslash (<code><span class='Function'>⍉</span></code>)</a></h1>
-<h2 id="--transpose"><a class="header" href="#--transpose"><code><span class='Function'>⍉</span> <span class='Value'>𝕩</span></code>: Transpose</a></h2>
+<h2 id="-𝕩-transpose"><a class="header" href="#-𝕩-transpose"><code><span class='Function'>⍉</span> <span class='Value'>𝕩</span></code>: Transpose</a></h2>
 <p>Move the first axis of <code><span class='Value'>𝕩</span></code> to the end.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgYSDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIOKNiSBhCgogICBiIOKGkCAx4oC/MuKAvzMg4qWKIOKGlTYKCiAgIOKJouKNiSBi">↗️</a><pre>       <span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>9</span>
 
@@ -21,7 +21,7 @@
        <span class='Function'>≢⍉</span> <span class='Value'>b</span>
 ⟨ 2 3 1 ⟩
 </pre>
-<h2 id="---reorder-axes"><a class="header" href="#---reorder-axes"><code><span class='Value'>𝕨</span> <span class='Function'>⍉</span> <span class='Value'>𝕩</span></code>: Reorder Axes</a></h2>
+<h2 id="𝕨--𝕩-reorder-axes"><a class="header" href="#𝕨--𝕩-reorder-axes"><code><span class='Value'>𝕨</span> <span class='Function'>⍉</span> <span class='Value'>𝕩</span></code>: Reorder Axes</a></h2>
 <p>Rearrange the axes of <code><span class='Value'>𝕩</span></code> as per the axis indices in <code><span class='Value'>𝕨</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4omiIGMg4oaQIDLigL8z4oC/NOKAvzXigL82IOKlijEKCiAgIOKJoiAx4oC/M+KAvzLigL8w4oC/NCDijYkgYw==">↗️</a><pre>       <span class='Function'>≢</span> <span class='Value'>c</span> <span class='Gets'>←</span> <span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>6</span> <span class='Function'>⥊</span><span class='Number'>1</span>
 ⟨ 2 3 4 5 6 ⟩
diff --git a/docs/help/under.html b/docs/help/under.html
index 193d1fc1..c50a0af5 100644
--- a/docs/help/under.html
+++ b/docs/help/under.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circle-jot-"><a class="header" href="#circle-jot-">Circle Jot (<code><span class='Modifier2'>⌾</span></code>)</a></h1>
-<h2 id="-----under"><a class="header" href="#-----under"><code><span class='Function'>𝔽</span><span class='Modifier2'>⌾</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⌾</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Under</a></h2>
+<h2 id="𝔽𝔾-𝕩-𝕨-𝔽𝔾-𝕩-under"><a class="header" href="#𝔽𝔾-𝕩-𝕨-𝔽𝔾-𝕩-under"><code><span class='Function'>𝔽</span><span class='Modifier2'>⌾</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⌾</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Under</a></h2>
 <ul>
 <li>Apply transformation <code><span class='Function'>𝔾</span></code> to all arguments</li>
 <li>Apply <code><span class='Function'>𝔽</span></code> to the transformed arguments</li>
diff --git a/docs/help/undo.html b/docs/help/undo.html
index 8707de72..2799abaf 100644
--- a/docs/help/undo.html
+++ b/docs/help/undo.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="superscript-equals-sign-"><a class="header" href="#superscript-equals-sign-">Superscript Equals Sign (<code><span class='Modifier'>⁼</span></code>)</a></h1>
-<h2 id="-----undo"><a class="header" href="#-----undo"><code><span class='Function'>𝔽</span><span class='Modifier'>⁼</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>⁼</span> <span class='Value'>𝕩</span></code>: Undo</a></h2>
+<h2 id="𝔽-𝕩-𝕨-𝔽-𝕩-undo"><a class="header" href="#𝔽-𝕩-𝕨-𝔽-𝕩-undo"><code><span class='Function'>𝔽</span><span class='Modifier'>⁼</span> <span class='Value'>𝕩</span></code>, <code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier'>⁼</span> <span class='Value'>𝕩</span></code>: Undo</a></h2>
 <p>Invert the function <code><span class='Function'>𝔽</span></code>, or use its defined inverse. Not all functions have inverses.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSAtIDIKCiAgIDEgLeKBvCAyCgogICDiiJogMTYKCiAgIOKImuKBvCA0CgogICDii4YgMQoKICAg4ouG4oG8IDIuNzE4MjgxODI4NDU5MDQ1">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>-</span> <span class='Number'>2</span>
 ¯1
diff --git a/docs/help/valences.html b/docs/help/valences.html
index 66069ae1..48078fe6 100644
--- a/docs/help/valences.html
+++ b/docs/help/valences.html
@@ -5,7 +5,7 @@
 </head>
 <div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
 <h1 id="circled-division-slash-"><a class="header" href="#circled-division-slash-">Circled Division Slash (<code><span class='Modifier2'>⊘</span></code>)</a></h1>
-<h2 id="--valences"><a class="header" href="#--valences"><code><span class='Function'>𝔽</span><span class='Modifier2'>⊘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Valences</a></h2>
+<h2 id="𝔽𝔾-𝕩-valences"><a class="header" href="#𝔽𝔾-𝕩-valences"><code><span class='Function'>𝔽</span><span class='Modifier2'>⊘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Valences</a></h2>
 <p>Apply <code><span class='Function'>𝔽</span></code> to <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgK+KKmC0gNQoKICAgLeKKmCsgNQ==">↗️</a><pre>       <span class='Function'>+</span><span class='Modifier2'>⊘</span><span class='Function'>-</span> <span class='Number'>5</span>
 5
@@ -13,7 +13,7 @@
        <span class='Function'>-</span><span class='Modifier2'>⊘</span><span class='Function'>+</span> <span class='Number'>5</span>
 ¯5
 </pre>
-<h2 id="---dyadic-valences"><a class="header" href="#---dyadic-valences"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⊘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic Valences</a></h2>
+<h2 id="𝕨-𝔽𝔾-𝕩-dyadic-valences"><a class="header" href="#𝕨-𝔽𝔾-𝕩-dyadic-valences"><code><span class='Value'>𝕨</span> <span class='Function'>𝔽</span><span class='Modifier2'>⊘</span><span class='Function'>𝔾</span> <span class='Value'>𝕩</span></code>: Dyadic Valences</a></h2>
 <p>Apply <code><span class='Function'>𝔾</span></code> to <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code>.</p>
 <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgNCAr4oqYLSA1CgogICA0IC3iipgrIDU=">↗️</a><pre>       <span class='Number'>4</span> <span class='Function'>+</span><span class='Modifier2'>⊘</span><span class='Function'>-</span> <span class='Number'>5</span>
 ¯1
diff --git a/md.bqn b/md.bqn
index 5d5a0ae9..23fb4a2e 100644
--- a/md.bqn
+++ b/md.bqn
@@ -250,13 +250,13 @@ Markdown ← {filename𝕊𝕩:
     f ← <⟜« tail            # Character before trailing hashes
     𝕩 /˜↩ ¬ f (⊑⟨"\"," ",""⟩⊐<f/𝕩)◶⟨⊣,⊢,⊢,0¨⊢⟩ tail
     𝕩 Trim↩
-    # Add an id, containing only a-z, digits, and hyphens
+    # Add an id, usually containing only a-z, digits, and hyphens
     Slugify ← {
       𝕩 ↩ '-'¨⌾((𝕩=' ')⊸/) 𝕩  # Replace spaces with dashes
       bounds ← ⥊ "Aa"+⌜0‿26   # Of the upper and lowercase alphabet
       # Lowercase alphabetic characters and remove special characters
       b ← bounds ⍋ 𝕩
-      ((2|b)∨∊⟜("-"∾'0'+↕10))⊸/ 𝕩+32×1=b
+      ((2|b)∨∊⟜("-𝕊𝕏𝕎𝔽𝔾𝕤𝕩𝕨𝕣𝕗𝕘π⍳"∾'0'+↕10))⊸/ 𝕩+32×1=b
     }
     ExtHtml ← 𝕩{
       s←Slugify 𝕗 ⋄ Q ← """"⊸(∾∾⊣)
author	Marshall Lochbaum <mwlochbaum@gmail.com>	2022-01-24 18:12:13 -0500
committer	Marshall Lochbaum <mwlochbaum@gmail.com>	2022-01-24 18:13:16 -0500
commit	3b6599b12470fe9b1321111d31c34685ffd5db52 (patch)
tree	c2b5aa59341dbfec7868911ff6bf505716ec85a9
parent	c9bc3e80280fd8a38f6297de80196dcbff9c28d9 (diff)