X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=code%2Funtyped_evaluator.ml;h=5ccecb50296b578f490b590f10dc97f85ec984a4;hp=158b00a579c41304a41e0b9853fb397591999e29;hb=ad14f269d489cc9a2ea9e522e2da37a42cfd46b3;hpb=28e6cb455e0ef803a394d8a3a7017f5d57a6d0d2

diff --git a/code/untyped_evaluator.ml b/code/untyped_evaluator.ml
index 158b00a5..5ccecb50 100644
--- a/code/untyped_evaluator.ml
+++ b/code/untyped_evaluator.ml
@@ -1,5 +1,5 @@
 (*
-   This is a simplified version of the code at http://lambda.jimpryor.net/code/untyped_full-1.3.tgz
+   This is a simplified version of the code at http://lambda.jimpryor.net/code/untyped_full-1.7.tgz
    You can use this code as follows:
 
    1. First, use a text editor to fill in the (* COMPLETE THIS *) portions.
@@ -61,7 +61,7 @@ and env = (identifier * term) list
 (* Operations for environments *)
 let empty = []
 let shift (ident : identifier) binding env = (ident,binding) :: env
-let rec lookup (sought_ident : ident) (env : env) : term option =
+let rec lookup (sought_ident : identifier) (env : env) : term option =
   match env with
   | [] -> None
   | (ident, binding) :: _ when ident = sought_ident -> Some binding