--- a/src/HOL/UNITY/Comp/PriorityAux.thy Tue Sep 19 23:15:32 2006 +0200
+++ b/src/HOL/UNITY/Comp/PriorityAux.thy Tue Sep 19 23:15:34 2006 +0200
@@ -11,7 +11,6 @@
begin
typedecl vertex
-arities vertex :: type
constdefs
symcl :: "(vertex*vertex)set=>(vertex*vertex)set"