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.)
~(J ∨ ~K)
L ⊃ M
(J ∨ L) ⊃ (K · M)
(A)Inconsistent (B)Consistent. Consistent valuation when J, K, and M are true and L is false (C)Consistent. Consistent valuation when L and M are true and J and K are false (D)Consistent. Consistent valuation when K and M are true and J and L are false
D