Problem 4. Show that =(pV (=p A q)) = p A gq, in two ways: 1-1 1-2 Assignment 1: Chapter 1 (a) using a truth table; [3 points] (b) without a truth table, but stepwise, using logical equivalences from class (feel free to use numbers 1 through 32 from class to refer to individual equivalences used.) [3 points] Problem 5. Show that (p = )V (g r) = ((p A q) r) is a tautology, in two ways: (a) using a truth table; [4 points] (b) without a truth table, but stepwise, using logical equivalences from class (feel free to use numbers 1 through 32 from class to refer to individual equivalences used.) [4 points]