--- a/IOA/example/Multiset.thy	Wed Nov 09 19:50:36 1994 +0100
+++ b/IOA/example/Multiset.thy	Wed Nov 09 19:51:09 1994 +0100
@@ -1,3 +1,12 @@
+(*  Title:      HOL/IOA/example/Multiset.thy
+    ID:         $Id$
+    Author:     Tobias Nipkow & Konrad Slind
+    Copyright   1994  TU Muenchen
+
+Axiomatic multisets.
+Should be done as a subtype and moved to a global place.
+*)
+
 Multiset = Arith + "Lemmas" +
 
 types