--- a/src/HOL/Library/Eval_Witness.thy Thu Jun 26 10:06:54 2008 +0200
+++ b/src/HOL/Library/Eval_Witness.thy Thu Jun 26 10:07:01 2008 +0200
@@ -7,7 +7,7 @@
header {* Evaluation Oracle with ML witnesses *}
theory Eval_Witness
-imports List
+imports Plain List
begin
text {*