doc-src/Tutorial/Ifexpr/bool2if
author paulson
Mon, 05 Mar 2001 15:25:11 +0100
changeset 11193 851c90b23a9e
parent 5377 efb799c5ed3c
permissions -rw-r--r--
reorganization of HOL/UNITY, moving examples to subdirectories Simple and Comp

consts bool2if :: boolex => ifex
primrec
"bool2if (Const b) = CIF b"
"bool2if (Var x)   = VIF x"
"bool2if (Neg b)   = IF (bool2if b) (CIF False) (CIF True)"
"bool2if (And b c) = IF (bool2if b) (bool2if c) (CIF False)"