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doc-src/Tutorial/Ifexpr/value
author paulson
Fri, 21 Apr 2000 11:29:57 +0200
changeset 8759 49154c960140
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new file containing simproc invocations, from NatBin.ML

consts value :: boolex => (nat => bool) => bool
primrec
"value (Const b) env = b"
"value (Var x)   env = env x"
"value (Neg b)   env = (~ value b env)"
"value (And b c) env = (value b env & value c env)"
isabelle