More detail in a few help pages

1 files changed, 6 insertions, 2 deletions

diff --git a/help/nothing.md b/help/nothing.md
index 0a5ad783..23aee6ba 100644
--- a/help/nothing.md
+++ b/help/nothing.md
@@ -5,6 +5,10 @@
 ## `·`: Nothing
 [→full documentation](../doc/expression.md#nothing)
 
+Indicates no value. If a left argument is Nothing, the function is called with no left argument, and if the right is Nothing, it's not called and "returns" Nothing.
+
+        · ⌽ "abc"  # Reverse instead of Rotate
+
 ### In Trains
 
 Nothing can serve as a left argument in a train to string together multiple monadic functions.
@@ -13,9 +17,9 @@ Nothing can serve as a left argument in a train to string together multiple mona
 
         (-·+-) 5
 
-### In Block Headers
+### Destructuring
 
-For Block header pattern matching syntax, Nothing can be used to indicate an unused value.
+For pattern matching in assignment or a block header, Nothing indicates an unused value.
 
         F ← {𝕊 a‿·‿b: a∾b}