(* Title: HOLCF/cfun1.thy
ID: $Id$
Author: Franz Regensburger
Copyright 1993 Technische Universitaet Muenchen
Definition of the type -> of continuous functions
*)
Cfun1 = Cont +
default cpo
typedef (CFun) ('a, 'b) "->" (infixr 0) = "{f. cont f}" (CfunI)
(* to make << defineable *)
instance "->" :: (cpo,cpo)sq_ord
consts
fapp :: "('a -> 'b)=>('a => 'b)" ("_`_" [999,1000] 999)
(* usually Rep_Cfun *)
(* application *)
fabs :: "('a => 'b)=>('a -> 'b)" (binder "LAM " 10)
(* usually Abs_Cfun *)
(* abstraction *)
less_cfun :: "[('a -> 'b),('a -> 'b)]=>bool"
syntax (symbols)
"->" :: [type, type] => type ("(_ \\<rightarrow>/ _)" [1,0]0)
"LAM " :: "[idts, 'a => 'b] => ('a -> 'b)"
("(3\\<Lambda>_./ _)" [0, 10] 10)
defs
fabs_def "fabs==Abs_CFun"
fapp_def "fapp==Rep_CFun"
less_cfun_def "(op <<) == (% fo1 fo2. fapp fo1 << fapp fo2 )"
end