Ciao Preprocessor (integrated Alpha version)
 | This is an alpha distribution, meant only for testing. Please do let us 
 | know at ciaopp-bugclip.dia.fi.upm.es any problems you may have.

{In /tmp/tmpH2OZ_x/num.pl
{loaded in 3392.212 msec.}
{preprocessed for plai in 0.0 msec.}
{analyzed by plai using det with local-control off in 4.0 msec.}
{written file /tmp/tmpH2OZ_x/num_det_co.pl}
:- module(_1,[num/1],[assertions]).

:- entry num(A)
         : ground(A).

:- true pred num(A)
         : ( ground([A]), gnd(A) )
        => ( ground([A]), rt5(A) )
         + ( is_det, mut_exclusive ).

num(0) :- !.
num(X) :-
        p(X,Y),
        num(Y).

:- true pred p(_1,X)
         : ( native_props:mshare([[X]]), var(X), ground([_1]), gnd(_1), term(X) )
        => ( ground([_1,X]), rt4(_1), gnd(X) )
         + ( is_det, mut_exclusive ).

p(0,0).
p(s(X),X).


:- regtype rt6/1.

rt6(0).
rt6(A) :-
        gnd(A).
rt6(s(A)) :-
        rt6(A).


:- regtype rt5/1.

rt5(0).
rt5(s(A)) :-
        rt6(A).


:- regtype rt4/1.

rt4(0).
rt4(s(A)) :-
        gnd(A).