Let R and S be commutative rings. Prove that (a, b) is a
Chapter 14, Problem 46SE(choose chapter or problem)
Problem 46SE
Let R and S be commutative rings. Prove that (a, b) is a zero-divisor in R ⊕ S if and only if a or b is a zero-divisor or exactly one of a or b is 0.
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