--- a/src/HOL/ZF/Games.thy Fri Oct 12 15:08:29 2012 +0200
+++ b/src/HOL/ZF/Games.thy Fri Oct 12 18:58:20 2012 +0200
@@ -191,7 +191,7 @@
definition "game = games_lfp"
-typedef (open) game = game
+typedef game = game
unfolding game_def by (blast intro: games_lfp_nonempty)
definition left_options :: "game \<Rightarrow> game zet" where
@@ -843,7 +843,7 @@
definition "Pg = UNIV//eq_game_rel"
-typedef (open) Pg = Pg
+typedef Pg = Pg
unfolding Pg_def by (auto simp add: quotient_def)
lemma equiv_eq_game[simp]: "equiv UNIV eq_game_rel"