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: John is a police officer. For all x_11, x_11 will work or x_11 is not a police officer.
There is at least one x for which x is a police officer can be inferred via the existential generalization rule. For all x_11, if x_11 were a police officer, then x_11 is working can be inferred via the universal rewriting rule.