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_10, if x_10 were a doctor, then x_10 is an astronaut. For all x_10, x_10 will play tennis or x_10 will drive a car. For all x_10, x_10 will not play tennis. There is at least one x_10 for which if x_10 were an astronaut, then x_10 is not driving a car.
For all x_10, x_10 will drive a car can be inferred via the universal disjunctive syllogism rule.