Use indirect truth tables to determine whether each set of propositions is consistent. If the set is consistent, choose an option with a consistent valuation. (There may be other consistent valuations.)
~N ≡ (O · P)
~O ⊃ Q
N · ~Q
(A)Inconsistent (B)Consistent. Consistent valuation when N, O, and P are true and Q is false (C)Consistent. Consistent valuation when N and O are true and P and Q are false (D)Consistent. Consistent valuation when N and P are true and O and Q are false
C