src/HOL/Library/FrechetDeriv.thy
changeset 39198 f967a16dfcdd
parent 37729 daea77769276
child 39302 d7728f65b353
--- a/src/HOL/Library/FrechetDeriv.thy	Mon Sep 06 22:58:06 2010 +0200
+++ b/src/HOL/Library/FrechetDeriv.thy	Tue Sep 07 10:05:19 2010 +0200
@@ -177,7 +177,7 @@
   hence "(\<lambda>h. F h - F' h) = (\<lambda>h. 0)"
     by (rule FDERIV_zero_unique)
   thus "F = F'"
-    unfolding expand_fun_eq right_minus_eq .
+    unfolding ext_iff right_minus_eq .
 qed
 
 subsection {* Continuity *}