1 files changed, 9 insertions, 0 deletions
diff --git a/isa/example.ML b/isa/example.ML
index d5ba5153..5a6f7dfb 100644
--- a/isa/example.ML
+++ b/isa/example.ML
@@ -1,3 +1,12 @@
+(*
+    Example proof script for Isabelle
+
+    David Aspinall <da@dcs.ed.ac.uk>
+
+    $Id$
+
+*)    
+
 goal HOL.thy
   "(A & B)-->(B & A)";
 br impI 1;