JetBlue Buys Planes Unless Neither Frontier Improves Service nor United

question 349

Multiple Choice

JetBlue buys planes unless neither Frontier improves service nor United lowers fares.

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

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Definitions:

Algebraic Expression

An expression constructed from integers, variables, and algebraic operations.

Antifreeze

A liquid added to the water in a cooling system to lower its freezing point, commonly used in automobile engines.

Cooling System

A system designed to remove heat from an area or machinery, commonly using a fluid or air to transfer heat away.

Algebraic Expression

An algebraic expression is a mathematical phrase that can contain numbers, variables, and operation symbols, but no equality sign.