src/HOL/Auth/Message.thy

--- a/src/HOL/Auth/Message.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/Auth/Message.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -9,7 +9,7 @@
 
 header{*Theory of Agents and Messages for Security Protocols*}
 
-theory Message = Main:
+theory Message imports Main begin
 
 (*Needed occasionally with spy_analz_tac, e.g. in analz_insert_Key_newK*)
 lemma [simp] : "A \<union> (B \<union> A) = B \<union> A"