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QUESTION
In this problem, the domain of discourse is the set of all integers. Which statements are true?
In this problem, the domain of discourse is the set of all integers. Which statements are true? If an existential statement is true, give an example. If a universal statement is false, give a counterexample.
(b) ∃x (x + 2 = 1)
(d) ∀x (x2 − x ≠ 0)
(f) ∃x (x2 > 0)
