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1 ) Answer the following questions. Explain your reasoning:a ) Without using the truth table, prove if the following statements are tautologies or not.Show your

1) Answer the following questions. Explain your reasoning:a) Without using the truth table, prove if the following statements are tautologies or not.Show your reasoning.
((P then q)^((q(r) then s))^(r then (P then s))

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