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Home/ Questions/Q 4017126
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Editorial Team
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Editorial Team
Asked: May 20, 20262026-05-20T09:49:24+00:00 2026-05-20T09:49:24+00:00

Can someone tell me whats going wrong in this code! testit :- read(Term1), read(Term2),

  • 0

Can someone tell me whats going wrong in this code!

testit :- read(Term1),  
            read(Term2),  
    (Term1 == Term2) ->  
    write(Term1);  
        write(Term2).

?- testit.  
7.  
8.  
_L139.  
true.  
____

How I can print the value of Term2 in else part.???

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  1. Editorial Team
    Editorial Team
    2026-05-20T09:49:25+00:00Added an answer on May 20, 2026 at 9:49 am

    (;)/2 has a different operator precedence than you seem to think. Use parentheses to get the intended nesting:

    testit :-
            read(Term1),
            read(Term2),
            (   Term1 == Term2 ->
                write(Term1)
            ;   write(Term2)
            ).
    
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