--- a/src/HOL/List.thy Mon Mar 26 20:45:59 2012 +0200
+++ b/src/HOL/List.thy Mon Mar 26 21:03:30 2012 +0200
@@ -5354,9 +5354,9 @@
"xs = ys \<Longrightarrow> (\<And>x. x \<in> set ys \<Longrightarrow> f x = g x) \<Longrightarrow> list_all f xs = list_all g ys"
by (simp add: list_all_iff)
-lemma list_any_cong [fundef_cong]:
+lemma list_ex_cong [fundef_cong]:
"xs = ys \<Longrightarrow> (\<And>x. x \<in> set ys \<Longrightarrow> f x = g x) \<Longrightarrow> list_ex f xs = list_ex g ys"
- by (simp add: list_ex_iff)
+by (simp add: list_ex_iff)
text {* Executable checks for relations on sets *}