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doc-src/Tutorial/Ifexpr/bool2if
author wenzelm
Mon, 05 Nov 2001 20:58:28 +0100
changeset 12054 a96c9563d568
parent 5377 efb799c5ed3c
permissions -rw-r--r--
export add_tvarsT, add_tvars, add_vars, add_frees (would actually belong to term.ML, but is apt to cause some confusion with the fold-right versions there);
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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)"
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