doc-src/Tutorial/Ifexpr/normal
author paulson
Sun, 31 Dec 2000 15:12:27 +0100
changeset 10755 0fb476ff855c
parent 5377 efb799c5ed3c
permissions -rw-r--r--
separation of HOL-Hyperreal from HOL-Real

consts normal :: ifex => bool
primrec
"normal(CIF b) = True"
"normal(VIF x) = True"
"normal(IF b t e) = (normal t & normal e &
      (case b of CIF b => True | VIF x => True | IF x y z => False))"