What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_15: P_2(x_15). forall x_15: P_15(x_15) -> R_8(x_15). forall x_15: ~R_8(x_15). forall x_15: P_15(x_15) <-> P_2(x_15).
forall x_15: ~P_15(x_15). forall x_15: P_15(x_15) -> P_2(x_15). forall x_15: P_2(x_15) -> P_15(x_15).