--- a/src/HOL/Main.thy Mon Dec 26 22:17:10 2011 +0100
+++ b/src/HOL/Main.thy Mon Dec 26 22:17:10 2011 +0100
@@ -1,7 +1,7 @@
header {* Main HOL *}
theory Main
-imports Plain Predicate_Compile Nitpick
+imports Plain Predicate_Compile Nitpick More_Set
begin
text {*