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Solition




:

 

 

.2.

, .

:

1) , .

2) , .


3) , , . , , .

4) , , .

4.8. : fail

: fail .

1. fail - , . fail .

1. 4- .

DOMAINS

name=string

kurs=integer

PREDICATES

Student(name, kurs)

spisok

CLAUSES

Student("",2).

Student("",4).

Student("",1).

Student("",4).

Student("",4).

spisok:-Write(" 4 "), nl, Student(X,4),

Write(X), nl, fail.

GOAL

spisok.

: nl (new line)

(= ) fail , . , .

:

4

2. - , (!), , , .. -. , .

:

R:-A, B,!, C.

.

, 1 4- , spisok

spisok:- Student(X,4),!, Student(Y,_), X<>Y,
Write(X," - ",Y), nl, fail.

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