src/HOLCF/stream2.thy
author wenzelm
Tue, 29 Apr 1997 17:38:02 +0200
changeset 3068 b7562e452816
parent 297 5ef75ff3baeb
permissions -rw-r--r--
deactivated new symbols (not yet printable on xterm, emacs);

(*  Title: 	HOLCF/stream2.thy
    ID:         $Id$
    Author: 	Franz Regensburger
    Copyright   1993 Technische Universitaet Muenchen

Additional constants for stream
*)

Stream2 = Stream +

consts

smap		:: "('a -> 'b) -> 'a stream -> 'b stream"

rules

smap_def
  "smap = fix[LAM h f s. stream_when[LAM x l.scons[f[x]][h[f][l]]][s]]"


end
      

(*
		smap[f][UU] = UU
      x~=UU --> smap[f][scons[x][xs]] = scons[f[x]][smap[f][xs]]

*)