Consider the following premises. For all x_3, if x_3 takes a plane, then x_3 is driving a car. There is at least one x_3 for which x_3 will drive a car if and only if x_3 will take a plane. Can we infer the following from them? If we can, name the inference rule being used: For all x_3, the fact that x_3 takes a plane does not imply that x_3 is driving a car.
That contradicts the premises. Therefore the answer is no.