Consider the following premises. David is sleeping if and only if James is playing squash. David is driving a car if and only if Joseph is a musician. For all y_1, if y_1 sleeps, then y_1 is driving a car. Can we infer the following from them? If we can, name the inference rule being used: The fact that James plays squash does not imply that Joseph is a musician.
That contradicts the premises. Therefore the answer is no.