--- a/src/CTT/Bool.thy Sat Mar 13 16:37:15 2010 +0100
+++ b/src/CTT/Bool.thy Sat Mar 13 16:44:12 2010 +0100
@@ -1,5 +1,4 @@
(* Title: CTT/bool
- ID: $Id$
Author: Lawrence C Paulson, Cambridge University Computer Laboratory
Copyright 1991 University of Cambridge
*)