--- a/src/HOL/Fun.thy Fri Apr 16 20:56:40 2010 +0200
+++ b/src/HOL/Fun.thy Fri Apr 16 21:28:09 2010 +0200
@@ -525,7 +525,7 @@
lemma bij_swap_iff: "bij (swap a b f) = bij f"
by (simp add: bij_def)
-hide (open) const swap
+hide_const (open) swap
subsection {* Inversion of injective functions *}