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: If it rains, then Charles is not driving a car. For all x_10, x_10 is a mechanic. For all x_10, if x_10 were a mechanic, then x_10 is driving a car.
For all x_10, x_10 will drive a car can be inferred via the universal modus ponens rule.