a) Let p(x),q(x) be open statements in the variable x, with a given universe. Prove that
[That is, prove that when the statement ∀x p(x) ˅ ∀x q(x) is true, then the statement ∀x [p(x) ˅ q(x)] is true.]
b) Find a counterexample for the converse in part (a). That is, find open statements p(x), q(x) and a universe such that ∀x [p(x) ˅ q(x)] is true, while ∀x p(x) ˅ ∀x q(x) is false.
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