What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_5, x_5 is not a janitor. For all x_5, if x_5 climbs a mountain, then x_5 is playing a game. For all x_5, if x_5 plays a game, then x_5 is climbing a mountain. For all x_5, if x_5 plays a game, then x_5 is a janitor.
For all x_5, x_5 will not play a game. For all x_5, if x_5 climbs a mountain, then x_5 is a janitor. For all x_5, x_5 will climb a mountain if and only if x_5 will play a game. For all x_5, x_5 will play a game if and only if x_5 will climb a mountain.