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src/HOL/HOL.thy
changeset 50360 628b37b9e8a2
parent 49339 d1fcb4de8349
child 51021 1cf4faed8b22 
--- a/src/HOL/HOL.thy	Tue Dec 04 22:14:59 2012 +0100
+++ b/src/HOL/HOL.thy	Wed Dec 05 11:05:23 2012 +0100
@@ -95,6 +95,9 @@
   conj  (infixr "\<and>" 35) and
   disj  (infixr "\<or>" 30) and
   implies  (infixr "\<longrightarrow>" 25) and
+  not_equal  (infixl "\<noteq>" 50)
+
+notation (xsymbols output)
   not_equal  (infix "\<noteq>" 50)
 
 notation (HTML output)
isabelle