edits

diff --git a/week7.mdwn b/week7.mdwn
index 52bc8eb..a78a77e 100644 (file)
--- a/week7.mdwn
+++ b/week7.mdwn
@@ -105,14 +105,14 @@ them from hurting the people that use them or themselves.
      object, we have `(unit x) * f == f x`.  For instance, `unit` is a
      function of type `'a -> 'a option`, so we have
 
-<pre>
-# let ( * ) m f = match m with None -> None | Some n -> f n;;
-val ( * ) : 'a option -> ('a -> 'b option) -> 'b option = <fun>
-# let unit x = Some x;;
-val unit : 'a -> 'a option = <fun>
-# unit 2 * unit;;
-- : int option = Some 2
-</pre>
+    <pre>
+    # let ( * ) m f = match m with None -> None | Some n -> f n;;
+    val ( * ) : 'a option -> ('a -> 'b option) -> 'b option = <fun>
+    # let unit x = Some x;;
+    val unit : 'a -> 'a option = <fun>
+    # unit 2 * unit;;
+    - : int option = Some 2
+    </pre>
 
        The parentheses is the magic for telling Ocaml that the
        function to be defined (in this case, the name of the function