src/ZF/bool.thy
changeset 124 858ab9a9b047
parent 14 1c0926788772
--- a/src/ZF/bool.thy	Tue Nov 16 14:23:19 1993 +0100
+++ b/src/ZF/bool.thy	Tue Nov 16 14:24:21 1993 +0100
@@ -6,7 +6,7 @@
 Booleans in Zermelo-Fraenkel Set Theory 
 *)
 
-Bool = ZF +
+Bool = ZF + "simpdata" +
 consts
     "1"		::      "i"     	("1")
     bool        ::      "i"