Prove or disprove the following using equivalence laws:
(a) p (q r) (p ? ¬r) ¬q
(b) ¬[(p q) ? (p ? ¬q)] [(p ¬q) ? (¬p ? q)]
thanks for the help.
(a) p (q r) (p ? ¬r) ¬q
(b) ¬[(p q) ? (p ? ¬q)] [(p ¬q) ? (¬p ? q)]
thanks for the help.
