src/HOLCF/ex/Dnat.thy

added Classlib.* and Witness.*,
moved (and updated) Coind.*, Dagstuhl.*, Dlist.*, Dnat.*, Focus_ex.*
and Stream.* from HOLCF/explicit_domains to here
adapted several proofs; now they work again.
Hope that the following strange errors (when committing) do not matter:
rlog error: RCS/Classlib.ML,v: No such file or directory
rlog error: RCS/Classlib.thy,v: No such file or directory
rlog error: RCS/Coind.ML,v: No such file or directory
rlog error: RCS/Coind.thy,v: No such file or directory
rlog error: RCS/Dagstuhl.ML,v: No such file or directory
rlog error: RCS/Dagstuhl.thy,v: No such file or directory
rlog error: RCS/Dlist.ML,v: No such file or directory
rlog error: RCS/Dlist.thy,v: No such file or directory
rlog error: RCS/Dnat.ML,v: No such file or directory
rlog error: RCS/Dnat.thy,v: No such file or directory
rlog error: RCS/Focus_ex.ML,v: No such file or directory
rlog error: RCS/Focus_ex.thy,v: No such file or directory
rlog error: RCS/Stream.ML,v: No such file or directory
rlog error: RCS/Stream.thy,v: No such file or directory
rlog error: RCS/Witness.ML,v: No such file or directory
rlog error: RCS/Witness.thy,v: No such file or directory

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

Theory for the domain of natural numbers  dnat = one ++ dnat
*)

Dnat = HOLCF +

domain dnat = dzero | dsucc (dpred :: dnat)

constdefs

iterator :: "dnat -> ('a -> 'a) -> 'a -> 'a"
            "iterator == fix`(LAM h n f x . case n of dzero   => x
                                                    | dsucc`m => f`(h`m`f`x))"

end