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.. (לתיקייה המכילה) | |
In question 1a, what is the meaning of "students that study every course with exactly one lecturer" ? | |
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you can assume that if a student takes a course, it means that he studies with all of the lecturers of that course. for example- if student A studies course number 1, and there are two lecturers for that course, than A will not be part of the result. |