Which of the following statements are true if the universe of discourse is the set of integers?
(A) ∀n (n² ≥ 0)
(B) ∃n (n² = 2)
(C) ∀n (n² ≥ n)
(D) ∃n (n² < 0)
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Correct answer: D. (A) and (C) Only
Explanation
Squares are non-negative (A true, D false). √2 is not an integer (B false). For every integer, n² ≥ n (C true).More Discrete Structures and Optimisation questions
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