Question:medium

Show that the relation \( R \) in the set of natural numbers \( N \times N \) defined by \( (a, b)\, R\, (c, d) \) if \( a + d = b + c \) is an equivalence relation.

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To prove equivalence relation, always verify: Reflexive + Symmetric + Transitive.

Updated On: Mar 1, 2026

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