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src/Pure/axclass.ML
changeset 11541 09dc5e8ac99c
parent 11539 0f17da240450
child 11740 86ac4189a1c1 
--- a/src/Pure/axclass.ML	Fri Aug 31 22:44:44 2001 +0200
+++ b/src/Pure/axclass.ML	Fri Aug 31 22:45:08 2001 +0200
@@ -104,7 +104,7 @@
 
 fun mk_arity (t, ss, c) =
   let
-    val tfrees = ListPair.map TFree (Term.invent_names (length ss + 1) "'", ss);
+    val tfrees = ListPair.map TFree (Term.invent_names (length ss) "'", ss);
   in Logic.mk_inclass (Type (t, tfrees), c) end;
 
 fun dest_arity tm =
isabelle