Which of the following is a contradiction?
(a) p ∨ (~ p ∧ q)
(b) (p ∧ q) ∧ ((~ p ∨ q)
(c) (p ⇒ q) ⇒ p
(d) of these
Correct Option**(b) (p ∧ q) ∧ ((~ p ∨ q)**
Explanation:
