src/HOL/Data_Structures/AA_Set.thy
changeset 67967 5a4280946a25
parent 67613 ce654b0e6d69
child 68023 75130777ece4
--- a/src/HOL/Data_Structures/AA_Set.thy	Sun Apr 08 12:14:00 2018 +0200
+++ b/src/HOL/Data_Structures/AA_Set.thy	Sun Apr 08 12:31:08 2018 +0200
@@ -488,7 +488,7 @@
 proof (standard, goal_cases)
   case 1 show ?case by simp
 next
-  case 2 thus ?case by(simp add: isin_set)
+  case 2 thus ?case by(simp add: isin_set_inorder)
 next
   case 3 thus ?case by(simp add: inorder_insert)
 next