doc-src/Intro/gate.thy
author paulson
Thu, 11 Sep 1997 12:24:28 +0200
changeset 3668 a39baf59ea47
parent 105 216d6ed87399
permissions -rw-r--r--
Split base cases from "msg" to "atomic" in order to reduce the number of freeness theorems
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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