doc-src/Tutorial/Ifexpr/normal
author wenzelm
Wed, 05 Jan 2000 11:58:18 +0100
changeset 8102 424f6e663977
parent 5377 efb799c5ed3c
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consts normal :: ifex => bool
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primrec
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"normal(CIF b) = True"
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"normal(VIF x) = True"
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"normal(IF b t e) = (normal t & normal e &
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      (case b of CIF b => True | VIF x => True | IF x y z => False))"