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 x, x is not poor. For all x, x is not a bartender or x will climb a mountain. There is at least one x for which x is a bartender or x is poor.
There is at least one x for which x is poor or x will climb a mountain can be inferred via the existential resolution rule.