doc-src/Intro/gate.thy
author nipkow
Fri, 09 Feb 1996 13:41:59 +0100
changeset 1486 7b95d7b49f7a
parent 105 216d6ed87399
permissions -rw-r--r--
Introduced qed_spec_mp.

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