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src/HOL/Tools/datatype_abs_proofs.ML
changeset 24346 4f6b71b84ee7
parent 24218 fbf1646b267c
child 24423 ae9cd0e92423 
--- a/src/HOL/Tools/datatype_abs_proofs.ML	Mon Aug 20 18:07:29 2007 +0200
+++ b/src/HOL/Tools/datatype_abs_proofs.ML	Mon Aug 20 18:07:30 2007 +0200
@@ -427,8 +427,8 @@
         val n = Sign.arity_number thy tyco;
       in
         thy
-        |> AxClass.prove_arity (tyco, replicate n HOLogic.typeS, [HOLogic.class_size])
-             (Class.intro_classes_tac [])
+        |> Class.prove_instance_arity (Class.intro_classes_tac [])
+            [(tyco, replicate n HOLogic.typeS, [HOLogic.class_size])] []
       end
 
     val (size_def_thms, thy') =
isabelle