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src/HOL/Finite.thy
changeset 12114 a8e860c86252
parent 11786 51ce34ef5113
child 12338 de0f4a63baa5 
--- a/src/HOL/Finite.thy	Fri Nov 09 00:06:15 2001 +0100
+++ b/src/HOL/Finite.thy	Fri Nov 09 00:09:47 2001 +0100
@@ -63,7 +63,7 @@
 
 syntax
   "_setsum" :: "idt => 'a set => 'b => 'b::plus_ac0"    ("\\<Sum>_:_. _" [0, 51, 10] 10)
-syntax (symbols)
+syntax (xsymbols)
   "_setsum" :: "idt => 'a set => 'b => 'b::plus_ac0"    ("\\<Sum>_\\<in>_. _" [0, 51, 10] 10)
 translations
   "\\<Sum>i:A. b" == "setsum (%i. b) A"  (* Beware of argument permutation! *)
isabelle