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_6, x_6 will drive a car or x_6 will not take a plane. There is at least one x_6 for which if x_6 plays tennis, then x_6 is not driving a car. For all x_6, x_6 will take a plane.
For all x_6, if x_6 takes a plane, then x_6 is driving a car can be inferred via the universal rewriting rule.