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src/HOL/Real.thy
changeset 62398 a4b68bf18f8d
parent 62397 5ae24f33d343
parent 62390 842917225d56
child 62623 dbc62f86a1a9 
--- a/src/HOL/Real.thy	Wed Feb 24 15:51:01 2016 +0000
+++ b/src/HOL/Real.thy	Wed Feb 24 16:00:57 2016 +0000
@@ -476,7 +476,7 @@
   shows "inverse (Real X) =
     (if vanishes X then 0 else Real (\<lambda>n. inverse (X n)))"
   using assms inverse_real.transfer zero_real.transfer
-  unfolding cr_real_eq rel_fun_def by (simp split: split_if_asm, metis)
+  unfolding cr_real_eq rel_fun_def by (simp split: if_split_asm, metis)
 
 instance proof
   fix a b c :: real
isabelle