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_10 for which x_10 will play a game. For all x_10, x_10 will take a plane or x_10 is a server. For all x_10, x_10 will not sleep. For all x_10, if x_10 were a server, then x_10 is sleeping. For all x_10, x_10 will not take a plane or x_10 will drive a car.
For all x_10, x_10 is not a server can be inferred via the universal modus tollens rule. For all x_10, x_10 is a server or x_10 will drive a car can be inferred via the universal resolution rule.