doc-src/Intro/gate.thy
author wenzelm
Thu, 03 Aug 2006 17:30:43 +0200
changeset 20335 b5eca86ef9cc
parent 105 216d6ed87399
permissions -rw-r--r--
moved bires_inst_tac etc. to rule_insts.ML;

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