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Problem 1: Using a truth table, verify that the proposition (PQ) ((Q R) (P R)) is a tautology for any propositions P, Q and

Problem 1: Using a truth table, verify that the proposition (PQ) ((Q R) (P R)) is a tautology for any propositions P, Q and R. Remark. This statement is the tautology underlying the logical principle of syllogism.

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