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doc-src/Intro/gate2.thy
author wenzelm
Mon, 08 Feb 1999 15:55:35 +0100
changeset 6258 1f85c03fb3df
parent 105 216d6ed87399
permissions -rw-r--r--
no deps on compile time sources;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Gate2 = FOL +
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consts  "~&"     :: "[o,o] => o" (infixl 35)
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        "#"      :: "[o,o] => o" (infixl 30)
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        If       :: "[o,o,o] => o"       ("if _ then _ else _")
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rules   nand_def "P ~& Q == ~(P & Q)"
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        xor_def  "P # Q  == P & ~Q | ~P & Q"
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        If_def   "if P then Q else R == P&Q | ~P&R"
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end
isabelle