EXAMPLE 2.2.13

Select the statement that is a valid conclusion from the following premises, if a valid conclusion is warranted.

All compact cars are uncomfortable.

All compact cars get good gas mileage.

A. No compact cars get good gas mileage.

B. All compact cars are cheap.

C. All cars that get good gas mileage are uncomfortable.

D. None of these is warranted.

SOLUTION

We should instantly see that this is a False Chain, so the correct choice is D.