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