src/FOL/fol.thy
author paulson
Wed, 01 Jul 1998 17:59:25 +0200
changeset 5106 05b7c9a2ddf9
parent 0 a5a9c433f639
permissions -rw-r--r--
HOL-Real
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FOL = IFOL +
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rules
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classical "(~P ==> P) ==> P"
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end