ykanakri310 ykanakri310

20-12-2022
Engineering

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Which of the following sentences are valid? Explain.
a. (∃x x=x) ⇒ (∀y ∃z y=z).
b. ∀x P(x) ∨¬P(x).
c. ∀x Smart(x) ∨ (x=x).

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