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Question: here is a truth table for three mystery compound propositions...

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Here is a truth table for three mystery compound propositions P, P2, and P3, each consisting of the propositional variables w, x, y, z. FFFFT FT FFTF T TF FTFTT TF

(2 pts) a. Ís (P Λ P) → P, a tautology? If so, explain. If not, give all counterexamples. (2 pts) b. Is P→ (P v P)) a contradiction? If so, explain. If not, give all counterexamples. 2 pts) c. Give a DNF for Ps

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