diff -r 47fdd4f40d00 -r 8a6cac7c7247 src/HOL/MicroJava/BV/Altern.thy
--- a/src/HOL/MicroJava/BV/Altern.thy	Sun Nov 02 17:39:52 2014 +0100
+++ b/src/HOL/MicroJava/BV/Altern.thy	Sun Nov 02 17:58:35 2014 +0100
@@ -2,7 +2,7 @@
     Author:     Martin Strecker
 *)
 
-header {* Alternative definition of well-typing of bytecode,  used in compiler type correctness proof *}
+section {* Alternative definition of well-typing of bytecode,  used in compiler type correctness proof *}
 
 theory Altern
 imports BVSpec