.


:




:

































 

 

 

 





, , . - ( ), , . :

beat (torn, jim!. beat(arm, torn). beat! pat, jim).

class!. Player, Category)

. , .

5. 127


winner. , .

fighter. , , .

sportsman. - , .

, , , - , - . :

X ,

Y, , X Y, 2, , Z X

:

X , X Y X .

"", Prolog, . winner . sportsman. , winner fighter " ". .

X - X - , X - ,

, X - , X - , , - ,


 


 


Prolog. :

beat (_, X), I.

class ( x, winner):-beatt x, _),!.

class (X, sportsman):-

beatt _, x).

, sportsman . . , .

?- class! ton. ).

- fighter; I

?- class! torn, sportsman),

yes %

class , . .

128 I. Prolog


 


5.1. :
(.

(2):-!. (3).

Prolog .

)?- ().

)?-(X), (Y).

)?- (;,!, (Y).

5.2. : -
, .

class (Number, positive):- Number > 0.

class! 0, zero).

class (Number, negative):- Number < 0.

.

5.3.

splits Numbers, Positives, Negatives)

; ( )

, , .

split ([3,-1,0,5,-2], [3,0,5;, -1,-23)

: , .





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, - , ; , - .
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