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_6, if x_6 cooks, then x_6 is working. There is at least one x_6 for which x_6 will work or x_6 is not a police officer. For all x_6, x_6 is a police officer.
There is at least one x_6 for which if x_6 were a police officer, then x_6 is working can be inferred via the existential rewriting rule.