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src/FOL/fol.thy
changeset 13894 8018173a7979
parent 13893 19849d258890
child 13895 b6105462ccd3 
--- a/src/FOL/fol.thy	Sat Apr 05 16:00:00 2003 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,4 +0,0 @@
-FOL = IFOL +
-rules
-classical "(~P ==> P) ==> P"
-end
isabelle