I have these facts enroll(hazem,maths). enroll(hazem,science). and so on and I want to have student(X,ListOfCourses). that returns the courses X is taking in a list.
take a look at findall/3 bagof/3, setof/3, for example :
student(X, ListOfCourses) :-
findall(Courses, enroll(X, Courses), ListOfCourses).
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