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: For all z, z will drive a car. For all z, if z were a nurse, then z is climbing a mountain. For all z, if z drives a car, then z is climbing a mountain.
For all z, z will climb a mountain can be inferred via the universal modus ponens rule.