Let Q(n) be the predicate “n2 ≤ 30.”
a. Write Q(2), Q(−2), Q(7), and Q(−7), and indicate which of these statements are true and which are false.
b. Find the truth set of Q(n) if the domain of n is Z, the set of all integers.
c. If the domain is the set Z+ of all positive integers, what is the truth set of Q(n)?
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