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doc-src/Intro/gate.thy
author wenzelm
Wed, 31 Dec 2008 18:53:16 +0100
changeset 29270 0eade173f77e
parent 105 216d6ed87399
permissions -rw-r--r--
moved old add_type_XXX, add_term_XXX etc. to structure OldTerm;

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
isabelle