(* Title: HOLCF/fun1.thy
ID: $Id$
Author: Franz Regensburger
Copyright 1993 Technische Universitaet Muenchen
Definition of the partial ordering for the type of all functions => (fun)
REMARK: The ordering on 'a => 'b is only defined if 'b is in class po !!
*)
Fun1 = Pcpo +
(* default class is still term *)
consts
less_fun :: "['a=>'b::po,'a=>'b] => bool"
rules
(* definition of the ordering less_fun *)
(* in fun1.ML it is proved that less_fun is a po *)
less_fun_def "less_fun(f1,f2) == ! x. f1(x) << f2(x)"
end