What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_3 for which x_3 is rich or x_3 will not drive a car. For all x_3, if x_3 cooks, then x_3 is rich. For all x_3, x_3 will drive a car or x_3 will cook.
There is at least one x_3 for which if x_3 drives a car, then x_3 is rich.