src/FOLP/folp.thy
author wenzelm
Mon, 16 Nov 1998 10:41:08 +0100
changeset 5869 b279a84ac11c
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FOLP = IFOLP +
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consts
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  cla :: "[p=>p]=>p"
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rules
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  classical "(!!x.x:~P ==> f(x):P) ==> cla(f):P"
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end