Determine whether the following argument is valid. Justify your answer by showing which rules of inferences have been followed at each step. She is a Math Major or a Computer Science Major. If she does not know discrete math, she is not a Math Major. If she knows discrete math, she is smart. She is not a Computer Science Major. Therefore, she is smart. Subject: DISCRETE STRUCTURES - PROP. LOGIC

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Q: 2. Use a truth table to determine whether (p → q) → r is logically equivalent to p → (q → r).

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