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Unit 1 · Discrete Structures and Optimisation Paper 2 CS · June 2024 (Re-Exam)

Translate into English: ∀x ∃y (x < y), where the domain of both variables is the real numbers.

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Correct answer: A. For all real numbers x, there exists a real number y such that x is less than y

Explanation

∀x ∃y (x < y): for every real x there is some real y bigger than it. The order of quantifiers matters: ∃y ∀x would claim one y bigger than every x.

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