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doc-src/Intro/gate.thy
author huffman
Thu, 08 Jan 2009 09:12:29 -0800
changeset 29405 98ab21b14f09
parent 105 216d6ed87399
permissions -rw-r--r--
add class ring_div; generalize mod/diff/minus proofs for class ring_div
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Gate = FOL +
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consts  nand,xor :: "[o,o] => o"
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rules   nand_def "nand(P,Q) == ~(P & Q)"
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        xor_def  "xor(P,Q)  == P & ~Q | ~P & Q"
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end
isabelle