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src/FOL/fol.thy
author paulson
Wed, 14 Feb 2001 12:16:32 +0100
changeset 11115 285b31e9e026
parent 0 a5a9c433f639
permissions -rw-r--r--
a new theorem from Bryan Ford
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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FOL = IFOL +
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rules
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classical "(~P ==> P) ==> P"
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end
isabelle