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doc-src/Intro/gate.thy
author lcp
Thu, 18 Aug 1994 17:41:40 +0200
changeset 543 e961b2092869
parent 105 216d6ed87399
permissions -rw-r--r--
ZF/ind_syntax/unvarifyT, unvarify: moved to Pure/logic.ML ZF/ind_syntax/prove_term: deleted ZF/constructor, indrule, intr_elim: now call prove_goalw_cterm and Logic.unvarify
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Gate = FOL +
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consts  nand,xor :: "[o,o] => o"
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rules   nand_def "nand(P,Q) == ~(P & Q)"
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        xor_def  "xor(P,Q)  == P & ~Q | ~P & Q"
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end
isabelle