src/HOL/Auth/Yahalom2.thy

--- a/src/HOL/Auth/Yahalom2.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/Auth/Yahalom2.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -3,7 +3,7 @@
     Copyright   1996  University of Cambridge
 *)
 
-header{*The Yahalom Protocol, Variant 2*}
+section{*The Yahalom Protocol, Variant 2*}
 
 theory Yahalom2 imports Public begin