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 will not play squash. For all x_3, if x_3 drives a car, then x_3 is a bartender. For all x_3, if x_3 were a bartender, then x_3 is playing squash. For all x_3, if x_3 were a bartender, then x_3 is driving a car.
There is at least one x_3 for which x_3 is not a bartender. For all x_3, if x_3 drives a car, then x_3 is playing squash. For all x_3, x_3 will drive a car if and only if x_3 is a bartender. For all x_3, x_3 is a bartender if and only if x_3 will drive a car.