What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? ~w. forall z: P(z) <-> U_3(z). U_3(a_12) <-> p_3. w <-> p_3.
U_3(a_12) -> p_3. w -> p_3. p_3 -> U_3(a_12). p_3 -> w. ~p_3. forall z: P(z) -> U_3(z). forall z: U_3(z) -> P(z).