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.)
(G ≡ H) ⊃ H
~H ∨ I
G · ~I
(A)Inconsistent (B)Consistent. Consistent valuation when G, H, and I are true (C)Consistent. Consistent valuation when G and H are true and I is false (D)Consistent. Consistent valuation when G is true and H and I are false
D