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+<head>
+  <link href="../favicon.ico" rel="shortcut icon" type="image/x-icon"/>
+  <link href="../style.css" rel="stylesheet"/>
+  <title>BQN: Not (`¬`)</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="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>
+<p>Logical Not of <code><span class='Value'>𝕩</span></code>.</p>
+<p><a href="https://mlochbaum.github.io/BQN/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>
+1
+
+      <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>
+<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="https://mlochbaum.github.io/BQN/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>
+3
+
+      <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span> <span class='Function'>¬</span> <span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>2</span>
+⟨ 4 3 ⟩
+</pre>