Question: 4. [4 pts] Prove the following compound propositions by using BOTH truth table and tautology. Note that stands for logical equivalence. a. (p1-9) ( pr)

4. [4 pts] Prove the following compound propositions by using BOTH

4. [4 pts] Prove the following compound propositions by using BOTH truth table and tautology. Note that stands for logical equivalence. a. (p1-9) ( pr) PV quar b. (pv q1p

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