What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 is happy or x_7 will not drive a car. For all x_7, x_7 will drive a car or x_7 is not happy. For all x_7, x_7 is not happy.
For all x_7, if x_7 drives a car, then x_7 is happy. For all x_7, if x_7 were happy, then x_7 is driving a car.