X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=hints%2Fassignment_7_hint_6.mdwn;h=38f6c2e09b38449cd7bdda53b8aeb7c8c6a6b9a9;hp=d69c92e7ed4d65fc9bfef71003559acb4efed46c;hb=0ffedd938c14e7d37e912259eaf632a4fec5ec42;hpb=04296a25e1123f3e7240727f1e10142a1afadb7e

diff --git a/hints/assignment_7_hint_6.mdwn b/hints/assignment_7_hint_6.mdwn
index d69c92e7..38f6c2e0 100644
--- a/hints/assignment_7_hint_6.mdwn
+++ b/hints/assignment_7_hint_6.mdwn
@@ -27,6 +27,8 @@
 				in unit_set new_dpm;;
 
 
+	**Note: Simon pointed out a subtle error in this code, which we will look into fixing. At the moment, the subtle error is still there.**
+
 *	Representing \[[and φ ψ]] is simple:
 
 		let and_op (phi : clause) (psi : clause) : clause =
@@ -39,7 +41,7 @@
 		let or_op (phi : clause) (psi : clause) =
             fun one_dpm -> unit_set (
                 fun (r, h) ->
-					in let truth_value' = (
+					let truth_value' = (
 						truths (phi one_dpm) (r, h) <> [] ||
 						truths (bind_set (negate_op phi one_dpm) psi) (r, h) <> []
 					) in (truth_value', r, h))
@@ -47,7 +49,7 @@
 		let if_op (phi : clause) (psi : clause) : clause =
             fun one_dpm -> unit_set (
               fun (r, h) ->
-					in let truth_value' = List.for_all (fun one_dpm ->
+					let truth_value' = List.for_all (fun one_dpm ->
 							let (truth_value, _, _) = one_dpm (r, h)
 							in truth_value = false || truths (psi one_dpm) (r, h) <> []
 						) (phi one_dpm)