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src/HOL/IntDef.thy
changeset 25762 c03e9d04b3e4
parent 25571 c9e39eafc7a0 
--- a/src/HOL/IntDef.thy	Wed Jan 02 12:22:38 2008 +0100
+++ b/src/HOL/IntDef.thy	Wed Jan 02 15:14:02 2008 +0100
@@ -22,7 +22,7 @@
   int = "UNIV//intrel"
   by (auto simp add: quotient_def)
 
-instantiation int :: "{zero, one, plus, minus, times, ord, abs, sgn}"
+instantiation int :: "{zero, one, plus, minus, uminus, times, ord, abs, sgn}"
 begin
 
 definition
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