What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_7, x_7 is a cashier or x_7 will not climb a mountain. For all x_7, if x_7 drives a car, then x_7 is climbing a mountain. There is at least one x_7 for which if x_7 were a cashier, then x_7 is driving a car. For all x_7, x_7 is not a cashier.
There is at least one x_7 for which if x_7 were a cashier, then x_7 is climbing a mountain. For all x_7, if x_7 climbs a mountain, then x_7 is a cashier.