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doc-src/Tutorial/Ifexpr/normif
author paulson
Thu, 19 Feb 2004 10:40:28 +0100
changeset 14395 cc96cc06abf9
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new theorem
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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)"
isabelle