--- a/src/HOL/Hyperreal/Filter.thy Wed Jun 06 19:12:07 2007 +0200 +++ b/src/HOL/Hyperreal/Filter.thy Wed Jun 06 19:12:40 2007 +0200 @@ -402,4 +402,6 @@ lemmas freeultrafilter_Ex = UFT.freeultrafilter_ex +hide (open) const filter + end