What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_15, x_15 will cook. For all x_15, if x_15 drives a car, then x_15 is an astronaut. For all x_15, x_15 will drive a car if and only if x_15 is an astronaut. For all x_15, if x_15 were a lawyer, then x_15 is not cooking. There is at least one x_15 for which if x_15 drives a car, then x_15 is a lawyer.
For all x_15, x_15 is not a lawyer. For all x_15, if x_15 drives a car, then x_15 is an astronaut. For all x_15, if x_15 were an astronaut, then x_15 is driving a car.