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doc-src/Tutorial/Ifexpr/valif
author paulson
Thu, 20 Feb 2003 11:09:48 +0100
changeset 13824 e4d8dea6dfc2
parent 5377 efb799c5ed3c
permissions -rw-r--r--
minor updates to pre-2002 release
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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consts valif :: ifex => (nat => bool) => bool
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primrec
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"valif (CIF b)    env = b"
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"valif (VIF x)    env = env x"
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"valif (IF b t e) env = (if valif b env then valif t env
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                                        else valif e env)"
isabelle