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src/FOL/FOL.thy
author
mueller
Fri, 13 Jun 1997 10:04:37 +0200
changeset 3435
ef4fe2a77e01
parent 0
a5a9c433f639
child 4093
5e8f3d57dee7
permissions
-rw-r--r--
changed compatible definition;
FOL = IFOL +
rules
classical "(~P ==> P) ==> P"
end