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src/HOL/Set.thy
changeset 25460 b80087af2274
parent 25360 b8251517f508
child 25502 9200b36280c0 
--- a/src/HOL/Set.thy	Fri Nov 23 21:09:32 2007 +0100
+++ b/src/HOL/Set.thy	Fri Nov 23 21:09:33 2007 +0100
@@ -17,7 +17,6 @@
 global
 
 typedecl 'a set
-arities set :: (type) type
 
 consts
   "{}"          :: "'a set"                             ("{}")
isabelle