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Assuming that p and r are false and that q and s are true, find the truth value of each proposition in Exercises 1422. 18.

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Assuming that p and r are false and that q and s are true, find the truth value of each proposition in Exercises 1422. 18. (p 9) r 19. p + 9+) 20. (s (PA)) A (P (rv)) As) 21. (A) (q Ar)) (SV) 22. (pvq) (q vs)) + ((orvp) ^ (q vs))

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