--- a/src/HOL/Auth/NS_Shared.thy Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/Auth/NS_Shared.thy Fri Jun 17 16:12:49 2005 +0200
@@ -6,7 +6,7 @@
header{*The Needham-Schroeder Shared-Key Protocol*}
-theory NS_Shared = Public:
+theory NS_Shared imports Public begin
text{*
From page 247 of