src/ZF/Constructible/MetaExists.thy
changeset 65449 c82e63b11b8b
parent 61393 8673ec68c798
child 69587 53982d5ec0bb
--- a/src/ZF/Constructible/MetaExists.thy	Sun Apr 09 20:17:00 2017 +0200
+++ b/src/ZF/Constructible/MetaExists.thy	Sun Apr 09 20:44:35 2017 +0200
@@ -4,7 +4,7 @@
 
 section\<open>The meta-existential quantifier\<close>
 
-theory MetaExists imports Main begin
+theory MetaExists imports ZF begin
 
 text\<open>Allows quantification over any term.  Used to quantify over classes.
 Yields a proposition rather than a FOL formula.\<close>