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src/HOL/Induct/PropLog.thy
changeset 16417 9bc16273c2d4
parent 13075 d3e1d554cd6d
child 16563 a92f96951355 
--- a/src/HOL/Induct/PropLog.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/Induct/PropLog.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -6,7 +6,7 @@
 
 header {* Meta-theory of propositional logic *}
 
-theory PropLog = Main:
+theory PropLog imports Main begin
 
 text {*
   Datatype definition of propositional logic formulae and inductive
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