X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=zipper-lists-continuations.mdwn;h=6ec4d3418ac767f32b687d85c382db31d97f579f;hp=bfd144c1ede17257d7847957abf1fded70590127;hb=d522d89b44b4ea898f8089ea2d2c7ec8384770de;hpb=aeec785e1d00c613973b4912d4b0f510954491ec

diff --git a/zipper-lists-continuations.mdwn b/zipper-lists-continuations.mdwn
index bfd144c1..6ec4d341 100644
--- a/zipper-lists-continuations.mdwn
+++ b/zipper-lists-continuations.mdwn
@@ -26,10 +26,10 @@ constructor is
 
 then we can deduce the unit and the bind:
 
-    runit x:'a -> 'a reader = fun (e:env) -> x
+    r_unit x:'a -> 'a reader = fun (e:env) -> x
 
 Since the type of an `'a reader` is `fun e:env -> 'a` (by definition),
-the type of the `runit` function is `'a -> e:env -> 'a`, which is a
+the type of the `r_unit` function is `'a -> e:env -> 'a`, which is a
 specific case of the type of the *K* combinator.  So it makes sense
 that *K* is the unit for the reader monad.
 
@@ -43,7 +43,8 @@ We can deduce the correct `bind` function as follows:
 
 We have to open up the `u` box and get out the `'a` object in order to
 feed it to `f`.  Since `u` is a function from environments to
-objects of type `'a`, we'll have
+objects of type `'a`, the way we open a box in this monad is
+by applying it to an environment:
 
          .... f (u e) ...