State whether the following conclusions are true or false: a. NOT (P(x) OR Q(x)) (NOT (P(x))

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State whether the following conclusions are true or false:

a. NOT (P(x) OR Q(x)) → (NOT (P(x)) AND (NOT (Q(x)))
b. NOT (∃x) (P(x)) → ∀ x (NOT (P(x))
c. (∃x) (P(x)) → ∀ x ((P(x))

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Fundamentals Of Database Systems

ISBN: 9780133970777

7th Edition

Authors: Ramez Elmasri, Shamkant Navathe

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