doc-src/Intro/gate.thy
author haftmann
Sun, 31 Jan 2010 14:51:31 +0100
changeset 34976 06df18c9a091
parent 105 216d6ed87399
permissions -rw-r--r--
generalized lemma foldl_apply_inv to foldl_apply

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