only if the lap top is new , itis worth buying the lap top old but cheap, therefore ,it - Maths - Mathematical Reasoning

Question

only if the lap top is new , itis worth buying the lap top old but
cheap, therefore ,it is worth buying if and only if the lap top is
expensive? Check prepositional argument and validity ?

Gagan · Answer

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only if the lap top is new , itis worth buying. the lap top old but cheap, therefore ,it is worth buying if and only if the lap top is expensive?. Check prepositional argument and validity ?