--- a/src/ZF/ex/twos_compl.thy	Mon Feb 05 21:33:14 1996 +0100
+++ b/src/ZF/ex/twos_compl.thy	Tue Feb 06 12:27:17 1996 +0100
@@ -1,5 +1,5 @@
 (*  ID:         $Id$
-    Author: 	Lawrence C Paulson, Cambridge University Computer Laboratory
+    Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
     Copyright   1994  University of Cambridge
 *)