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doc-src/Intro/gate.thy
author wenzelm
Fri, 10 Jul 2009 00:47:17 +0200
changeset 31981 9c59cbb9c5a2
parent 105 216d6ed87399
permissions -rw-r--r--
tuned varify/unvarify: use Term_Subst.map_XXX combinators;

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