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doc-src/Tutorial/Ifexpr/bool2if
author wenzelm
Wed, 25 Aug 1999 20:49:02 +0200
changeset 7357 d0e16da40ea2
parent 5377 efb799c5ed3c
permissions -rw-r--r--
proper bootstrap of HOL theory and packages;
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consts bool2if :: boolex => ifex
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primrec
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"bool2if (Const b) = CIF b"
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"bool2if (Var x)   = VIF x"
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"bool2if (Neg b)   = IF (bool2if b) (CIF False) (CIF True)"
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"bool2if (And b c) = IF (bool2if b) (bool2if c) (CIF False)"
isabelle