doc-src/Intro/gate.thy
author wenzelm
Tue, 05 Apr 2011 14:30:40 +0200
changeset 42225 cf48af306290
parent 105 216d6ed87399
permissions -rw-r--r--
discontinued special treatment of structure Parser -- directly accessible;

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