src/FOL/FOL.thy
author wenzelm
Tue, 27 May 1997 15:45:07 +0200
changeset 3362 0b268cff9344
parent 0 a5a9c433f639
child 4093 5e8f3d57dee7
permissions -rw-r--r--
NJ 1.09.2x as factory default!
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FOL = IFOL +
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rules
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classical "(~P ==> P) ==> P"
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end