diff -r a202293db3f6 -r 0046be1769f9 src/Pure/Isar/proof.ML
--- a/src/Pure/Isar/proof.ML	Fri May 05 22:02:46 2000 +0200
+++ b/src/Pure/Isar/proof.ML	Fri May 05 22:09:41 2000 +0200
@@ -1,6 +1,7 @@
 (*  Title:      Pure/Isar/proof.ML
     ID:         $Id$
     Author:     Markus Wenzel, TU Muenchen
+    License:    GPL (GNU GENERAL PUBLIC LICENSE)
 
 Proof states and methods.
 *)