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1. (30 points) Are the following pairs of propositions logically equivalent? Justify your answers using truth tables. a. (pq)(pq) and (pq)(pq) b.

1. (30 points) Are the following pairs of propositions logically equivalent? Justify your answers using truth tables. a. " (pq)(pq) and " (pq)(pq) " b. " " (pq)(pq) " and "pq " c. "(pr)(qr) " and " (pq)r

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