Use truth tables

1. For each argument below, write the argument symbolically then determine if it is valid or invalid. Carefully show, explain or justify EACH step in your answer. (a) RP (b) 1-P) QAP 7 QV7R RVP 7P 7S R -R - (PAS) 1S (d) SQ SVR Q P. 7R 2. Determine if the pair of statements are logically equivalent or not. Carefully show, explain or justify your answers. (Q) - R GPA 7 Q) VR 3. (a) Write the argument symbolically (b) determine if it is valid or invalid. Carefully show, explain or justify EACH step in your answer. If the river is not wide then the sand is deep. If the sand is deep then there are boats. If there are no boats then the river is not wide. 4. (a) Write the argument symbolically (b) determine if it is valid or invalid. Carefully show, explain or justify EACH step in your answer. Either the wind is not full or the sea is not calm. If the sea is calm then we go swimming. It is not the case that we go swimming. The wind is not full