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doc-src/Intro/gate.thy
author wenzelm
Fri, 26 Nov 2010 22:29:41 +0100
changeset 40722 441260986b63
parent 105 216d6ed87399
permissions -rw-r--r--
make two copies (!) of Library.UnequalLengths coincide with ListPair.UnequalLengths;

Gate = FOL +
consts  nand,xor :: "[o,o] => o"
rules   nand_def "nand(P,Q) == ~(P & Q)"
        xor_def  "xor(P,Q)  == P & ~Q | ~P & Q"
end
isabelle