determine whether the argument is valid or invalid. If it is invalid, select a counterexample.
-1. J $ \lor $ (M $ \lor $ L)
2) (∼J ⊃ M) ⊃ K
3) K ⊃ N
4) ∼J • ∼L / N
A) Valid
B) Invalid. Counterexample when K is true and J, L, M, and N are false
C) Invalid. Counterexample when M is true, and J, K, L, and N are false
D) Invalid. Counterexample when K and K are true and L, M, and N are false
E) Invalid. Counterexample when K and M are true and J, K, and N are false

Question

Quizplus · Accepted Answer

The argument is valid because it is a syllogism with a valid form. The first premise is a disjunction, the second premise is a conditional, and the third premise is a conditional. The conclusion is a conjunction of the consequents of the second and third premises. Therefore, the argument is valid.

Determine Whether the Argument Is Valid or Invalid ∨ \lor ∨

Determine Whether the Argument Is Valid or Invalid $\lor$