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doc-src/Tutorial/Ifexpr/normif
author paulson
Thu, 12 Oct 2000 12:15:59 +0200
changeset 10196 4d1af711cf7b
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new I-rules r_into_rtrancl, r_into_trancl and a simpler proof

consts normif :: ifex => ifex => ifex => ifex
primrec
"normif (CIF b)    t e = IF (CIF b) t e"
"normif (VIF x)    t e = IF (VIF x) t e"
"normif (IF b t e) u f = normif b (normif t u f) (normif e u f)"
isabelle