--- a/src/HOL/Library/Permutation.thy Thu Jun 26 10:06:54 2008 +0200
+++ b/src/HOL/Library/Permutation.thy Thu Jun 26 10:07:01 2008 +0200
@@ -5,7 +5,7 @@
header {* Permutations *}
theory Permutation
-imports Multiset
+imports Plain Multiset
begin
inductive