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doc-src/Intro/gate.thy
author huffman
Thu, 08 Jan 2009 10:07:39 -0800
changeset 29407 5ef7e97fd9e4
parent 105 216d6ed87399
permissions -rw-r--r--
move lemmas mult_minus{left,right} inside class ring

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