src/HOL/Isar_examples/BasicLogic.thy
changeset 16417 9bc16273c2d4
parent 12387 fe2353a8d1e8
child 18193 54419506df9e
     1.1 --- a/src/HOL/Isar_examples/BasicLogic.thy	Fri Jun 17 11:35:35 2005 +0200
     1.2 +++ b/src/HOL/Isar_examples/BasicLogic.thy	Fri Jun 17 16:12:49 2005 +0200
     1.3 @@ -7,7 +7,7 @@
     1.4  
     1.5  header {* Basic logical reasoning *}
     1.6  
     1.7 -theory BasicLogic = Main:
     1.8 +theory BasicLogic imports Main begin
     1.9  
    1.10  
    1.11  subsection {* Pure backward reasoning *}