diff -r a5404c70982f -r b84dd2c25a1c src/HOL/Library/Library.thy
--- a/src/HOL/Library/Library.thy	Sun Feb 04 19:42:54 2001 +0100
+++ b/src/HOL/Library/Library.thy	Sun Feb 04 19:43:15 2001 +0100
@@ -7,6 +7,7 @@
   Nested_Environment +
   Accessible_Part +
   Multiset +
+  Permutation +
   While_Combinator:
 end
 (*>*)