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doc-src/Intro/gate.thy
author nipkow
Tue, 04 May 1999 16:49:24 +0200
changeset 6577 a2b5c84d590a
parent 105 216d6ed87399
permissions -rw-r--r--
Arithmetic.

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