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Asked Dec 27, 2019

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Prove that a subset W of a vector space V is a subspace of V if and only if W = ∅, and, whenever a ∈ F and x, y ∈ W, then ax ∈ W and x + y ∈ W.

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We need to prove that a subset W of a vector space V is a subspace of V if and only if W = &em...

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