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src/HOL/Fields.thy
changeset 56541 0e3abadbef39
parent 56481 47500d0881f9
child 56571 f4635657d66f 
--- a/src/HOL/Fields.thy	Fri Apr 11 17:53:16 2014 +0200
+++ b/src/HOL/Fields.thy	Fri Apr 11 22:53:33 2014 +0200
@@ -801,7 +801,7 @@
 done
 *)
 
-lemma divide_pos_pos:
+lemma divide_pos_pos[simp]:
   "0 < x ==> 0 < y ==> 0 < x / y"
 by(simp add:field_simps)
isabelle