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doc-src/Intro/gate.thy
author wenzelm
Sun, 20 May 2012 11:34:33 +0200
changeset 47884 21c42b095c84
parent 105 216d6ed87399
permissions -rw-r--r--
try to avoid races again (cf. 8c37cb84065f and fd3a36e48b09);

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