diff -r 1bece7f35762 -r 33fe2d701ddd src/HOL/Recdef.thy
--- a/src/HOL/Recdef.thy	Thu Oct 12 18:09:06 2000 +0200
+++ b/src/HOL/Recdef.thy	Thu Oct 12 18:38:23 2000 +0200
@@ -5,7 +5,7 @@
 TFL: recursive function definitions.
 *)
 
-theory Recdef = WF_Rel + Datatype
+theory Recdef = Wellfounded_Relations + Datatype
 files
   "../TFL/utils.sml"
   "../TFL/usyntax.sml"