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

question 178

Multiple Choice

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)

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