src/Pure/axclass.ML
changeset 19642 ea7162f84677
parent 19585 70a1ce3b23ae
child 19690 8c03cadf9886
--- a/src/Pure/axclass.ML	Tue May 16 13:01:23 2006 +0200
+++ b/src/Pure/axclass.ML	Tue May 16 13:01:24 2006 +0200
@@ -392,8 +392,7 @@
               | _ => I) typ [];
         val hyps = vars
           |> map (fn (T, S) => (T, Drule.sort_triv thy (T, S) ~~ S));
-        val ths = (typ, sort)
-          |> Sorts.of_sort_derivation (Sign.pp thy) (Sign.classes_of thy, Sign.arities_of thy)
+        val ths = (typ, sort) |> Sorts.of_sort_derivation (Sign.pp thy) (Sign.classes_of thy)
            {classrel =
               fn (th, c1) => fn c2 => th RS the_classrel thy (c1, c2),
             constructor =