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Synonym for binary relation is _______

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Synonym for binary relation is _______

(a) equivalence relation

(b) dyadic relation

(c) orthogonal relation

(d) one to many relations

I have been asked this question in final exam.

This key question is from Number of Relations topic in division Relations of Discrete Mathematics

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Correct answer is (b) dyadic relation

The explanation is: A binary relation on a set S is a set of ordered pairs of elements of S. It is a subset of the cartesian product S^2 = S x S. The terms correspondence, dyadic relation and 2-place relation are synonyms for the binary relation.

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