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doc-src/Intro/gate.thy
author wenzelm
Mon, 22 Oct 2001 18:01:38 +0200
changeset 11886 36d0585f87de
parent 105 216d6ed87399
permissions -rw-r--r--
Display.pretty_thms;

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