American's hiring pilots is a sufficient condition for both Delta's advertising a sale and Southwest's expanding routes.
A) (D • S) ∨ A
B) (D ⊃ A) • (S ⊃ A)
C) (D • S) ⊃ A
D) A ⊃ (D • S)
E) A ≡ (D • S)

Question

Quizplus · Accepted Answer

The statement establishes that American's hiring pilots (A) is a sufficient condition for both Delta's advertising a sale (D) and Southwest's expanding routes (S), which is logically represented as A implies both D and S (A ⊃ (D • S)).

American's Hiring Pilots Is a Sufficient Condition for Both Delta's