New function read_cterms is a combination of read_def_cterm and
read_cterm. It reads and simultaneously type-checks a list of strings.
cterm_of no longer catches exception TYPE; instead it must be caught later on
and a message printed using Sign.exn_type_msg. More informative messages can
be printed this way.
(* Title: HOLCF/holcfb.thy
ID: $Id$
Author: Franz Regensburger
Copyright 1993 Technische Universitaet Muenchen
Basic definitions for the embedding of LCF into HOL.
*)
Holcfb = Nat +
consts
theleast :: "(nat=>bool)=>nat"
rules
theleast_def "theleast(P) == (@z.(P(z) & (!n.P(n)-->z<=n)))"
end