--- a/src/ZF/ArithSimp.thy Sun Nov 02 16:09:35 2014 +0100
+++ b/src/ZF/ArithSimp.thy Sun Nov 02 16:39:54 2014 +0100
@@ -3,7 +3,7 @@
Copyright 2000 University of Cambridge
*)
-header{*Arithmetic with simplification*}
+section{*Arithmetic with simplification*}
theory ArithSimp
imports Arith