src/ZF/Constructible/Datatype_absolute.thy
changeset 58871 c399ae4b836f
parent 58860 fee7cfa69c50
child 60770 240563fbf41d
--- a/src/ZF/Constructible/Datatype_absolute.thy	Sun Nov 02 16:09:35 2014 +0100
+++ b/src/ZF/Constructible/Datatype_absolute.thy	Sun Nov 02 16:39:54 2014 +0100
@@ -2,7 +2,7 @@
     Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
 *)
 
-header {*Absoluteness Properties for Recursive Datatypes*}
+section {*Absoluteness Properties for Recursive Datatypes*}
 
 theory Datatype_absolute imports Formula WF_absolute begin