What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one x_8 for which x_8 will climb a mountain if and only if x_8 is a cashier. For all x_8, x_8 will climb a mountain and x_8 will play a game.
For all x_8, x_8 will climb a mountain. For all x_8, x_8 will play a game. There is at least one x_8 for which if x_8 climbs a mountain, then x_8 is a cashier. There is at least one x_8 for which if x_8 were a cashier, then x_8 is climbing a mountain.