src/HOL/NatDef.thy
changeset 10212 33fe2d701ddd
parent 8943 a4f8be72f585
child 10832 e33b47e4246d
     1.1 --- a/src/HOL/NatDef.thy	Thu Oct 12 18:09:06 2000 +0200
     1.2 +++ b/src/HOL/NatDef.thy	Thu Oct 12 18:38:23 2000 +0200
     1.3 @@ -8,7 +8,7 @@
     1.4  Type nat is defined as a set Nat over type ind.
     1.5  *)
     1.6  
     1.7 -NatDef = WF +
     1.8 +NatDef = Wellfounded_Recursion +
     1.9  
    1.10  (** type ind **)
    1.11