src/HOL/Modelcheck/mucke_oracle.ML
changeset 15531 08c8dad8e399
parent 15457 1fbd4aba46e3
child 15570 8d8c70b41bab
--- a/src/HOL/Modelcheck/mucke_oracle.ML	Fri Feb 11 18:51:00 2005 +0100
+++ b/src/HOL/Modelcheck/mucke_oracle.ML	Sun Feb 13 17:15:14 2005 +0100
@@ -981,8 +981,8 @@
 	 val s =  post_last_dot(fst(qtn a));
 	 fun param_types ((Const("Trueprop",_)) $ (_ $ (Var(_,Type(_,t)))))  = t |
 	 param_types _ = error "malformed induct-theorem in preprocess_td";	
-	 val pl = param_types (concl_of (get_thm (theory_of_sign sg) (s ^ ".induct", None)));		
-         val l = split_constrs sg (snd(qtn a)) pl (prems_of (get_thm (theory_of_sign sg) (s ^ ".induct", None)));
+	 val pl = param_types (concl_of (get_thm (theory_of_sign sg) (s ^ ".induct", NONE)));		
+         val l = split_constrs sg (snd(qtn a)) pl (prems_of (get_thm (theory_of_sign sg) (s ^ ".induct", NONE)));
 	 val ntl = new_types l;
         in 
         ((a,l) :: (preprocess_td sg (ntl @ b) (a :: done)))