What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_4, x_4 will drive a car. For all x_4, if x_4 plays a game, then x_4 is not driving a car. There is at least one x_4 for which x_4 will play a game or x_4 will read a book.
For all x_4, x_4 will not play a game.