What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all x_14, x_14 will take a plane or x_14 will not drive a car. John is not taking a plane. If John takes a plane, then John is driving a car.
For all x_14, if x_14 drives a car, then x_14 is taking a plane can be inferred via the universal rewriting rule.