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Prolog System Predicates- Cut and Fail- a quiz

Hello friends. Today I was having my Prolog exams. There I had a very interesting question that I would like to share with you.

Ques: If there are N one argument facts for the predicate named 'test1' and M one argument facts for the predicate named 'test2'.
This would be like:
test1(1).      test2(1).
test1(2).      test2(2).
test1(3).      test2(3).
|                  |
test1(n).      test2(m).
Now find the maximum number of possible answers all the values of z for the query 'z' as:
?-z.
where the rule z in various cases is:
1. z:- test1(X), !, test2(X).

2. z:- test1(X), test2(X), !.

3. z:- !, test1(X), test2(X).

4. z:- test1(X), fail, test2(X).

5. z:- test1(X), !, test2(Y).

6. z:- test1(X), test2(Y), !.

7. z:- !, test1(X), test2(Y).

8. z:- test1(X), test2(Y), fail.
Feel free to ask any question on this topic.😀

Replies

  • Deepika Bansal
    Deepika Bansal
    No answer till now. Friends if you're having any doubt, please share with me, I'll help you to the best of my knowledge. We can start prolog from the very beginning if you want.

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