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doc-src/Intro/gate.thy
author wenzelm
Fri, 10 Feb 2006 02:22:48 +0100
changeset 19001 64e4b5bc6443
parent 105 216d6ed87399
permissions -rw-r--r--
tuned comment; moved local syntax to local_syntax.ML; common naming (for abbrevs and thms); transfer: merge consts; tuned pretty_term'; added polymorphic -- special case of generalize; added add_abbrevs(_i); read/cert: expand_consts;
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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