Question: Use a truth tree ( s ) to test whether the following formula is tautologous, contradictory, or contingent. Remember that you may have to use

Use a truth tree(s) to test whether the following formula is tautologous, contradictory, or contingent. Remember that you may have to use a second tree!
(pq)[p(qvvr)]
Use a truth tree ( s ) to test whether the

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