--- a/src/HOL/ex/Sorting.thy Wed Dec 29 13:51:17 2010 +0100
+++ b/src/HOL/ex/Sorting.thy Wed Dec 29 17:34:41 2010 +0100
@@ -7,7 +7,7 @@
header{*Sorting: Basic Theory*}
theory Sorting
-imports Main Multiset
+imports Main "~~/src/HOL/Library/Multiset"
begin
consts