doc-src/Tutorial/Ifexpr/normif
author berghofe
Wed, 29 Jan 2003 17:35:11 +0100
changeset 13795 cfa3441c5238
parent 5377 efb799c5ed3c
permissions -rw-r--r--
Some tuning: - finite now uses rev_append (tail recursive!) to append stopper, because @ needs to much stack space for large strings - repeat is now tail recursive
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consts normif :: ifex => ifex => ifex => ifex
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primrec
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"normif (CIF b)    t e = IF (CIF b) t e"
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"normif (VIF x)    t e = IF (VIF x) t e"
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"normif (IF b t e) u f = normif b (normif t u f) (normif e u f)"