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Let p,q, and r be propositional variables. Which formulas are satisfiable? Select all that apply. (pr)(qq)(r)(p2q2r)(pr)(q)(p2q)(p2q)(pq)(p)(q)

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Let p,q, and r be propositional variables. Which formulas are satisfiable? Select all that apply. (pr)(qq)(r)(p2q2r)(pr)(q)(p2q)(p2q)(pq)(p)(q)

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