Southwest Expands Routes If Either American Does Not Hire Pilots

question 267

Multiple Choice

Southwest expands routes if either American does not hire pilots or United does not lower fares.

• A) ∼(A ∨ U) ⊃ S
• B) (∼A • ∼U) ⊃ S
• C) S ⊃ (∼A ∨ ∼U)
• D) (S ⊃ ∼A ∨ ∼U)
• E) (∼A ∨ ∼U) ⊃ S

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