Given the argument: R ⊃ (H • ∼N) / (H • ∼B) ⊃ (N ∨ ∼P) / K ⊃ (G • P) // (K • R) ⊃ B
This argument is:
A) Invalid.
B) Valid.
C) Uncogent.
D) Cogent.
E) Sound.

Question

Quizplus · Accepted Answer

This argument is valid because the conclusion follows logically from the premises using valid deductive reasoning. One way to see this is to start with the premise (K • R) ⊃ B and use the conditional proof method: assume K • R, then infer B. Since B follows from (H • ∼B) ⊃ (N ∨ ∼P) and (N ∨ ∼P) follows from R ⊃ (H • ∼N), it follows that B can be inferred from K • R by using these premises and applying the transitive property of implication. Therefore, the argument is valid.

Given the Argument: R ⊃ (H • ∼N) / (H