changeset 39302 | d7728f65b353 |
parent 39198 | f967a16dfcdd |
--- a/src/HOL/Recdef.thy Mon Sep 13 08:43:48 2010 +0200 +++ b/src/HOL/Recdef.thy Mon Sep 13 11:13:15 2010 +0200 @@ -45,7 +45,7 @@ text{*cut*} lemma cuts_eq: "(cut f r x = cut g r x) = (ALL y. (y,x):r --> f(y)=g(y))" -by (simp add: ext_iff cut_def) +by (simp add: fun_eq_iff cut_def) lemma cut_apply: "(x,a):r ==> (cut f r a)(x) = f(x)" by (simp add: cut_def)