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_2, x_2 will make tea. For all x_2, if x_2 were a police officer, then x_2 is not cooking. There is at least one x_2 for which if x_2 makes tea, then x_2 is cooking.
There is at least one x_2 for which x_2 will cook can be inferred via the existential modus ponens rule.