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doc-src/Intro/gate.thy
author kleing
Thu, 20 Jun 2002 21:44:54 +0200
changeset 13230 c5fad3c40d45
parent 105 216d6ed87399
permissions -rw-r--r--
fail more gracefully, return proper exit codes, allow preset DISTPREFIX

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