doc-src/Intro/gate.thy
author wenzelm
Tue, 11 Mar 1997 13:05:40 +0100
changeset 2781 0d6fcae3ae45
parent 105 216d6ed87399
permissions -rw-r--r--
added THIS_IS_ISABELLE_BUILD;

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