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doc-src/Intro/gate.thy
author wenzelm
Thu, 09 Nov 2006 21:44:33 +0100
changeset 21275 e4cb9c7a7482
parent 105 216d6ed87399
permissions -rw-r--r--
abbrevs: return result; LocalTheory.restore;

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