src/HOL/BNF_Def.thy

--- a/src/HOL/BNF_Def.thy	Sun Nov 02 18:21:14 2014 +0100
+++ b/src/HOL/BNF_Def.thy	Sun Nov 02 18:21:45 2014 +0100
@@ -6,7 +6,7 @@
 Definition of bounded natural functors.
 *)
 
-header {* Definition of Bounded Natural Functors *}
+section {* Definition of Bounded Natural Functors *}
 
 theory BNF_Def
 imports BNF_Cardinal_Arithmetic Fun_Def_Base