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: U_3(i_4) or ~W(i_4). p -> U_3(i_4). forall z: U_3(z) -> W(z).
W(i_4) -> U_3(i_4) can be inferred via the rewriting rule.