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: There is at least one x_12 for which if x_12 drives a car, then x_12 is a sailor. For all x_12, x_12 will drive a car and x_12 is a server.
For all x_12, x_12 will drive a car can be inferred via the universal simplification rule. For all x_12, x_12 is a server can be inferred via the universal simplification rule.