What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? ~P_8(e_4). R_8(e_4) -> P_8(e_4). forall x_8: P_8(x_8) -> Q_8(x_8). forall x_8: Q_8(x_8) -> R_8(x_8).
forall x_8: P_8(x_8) -> R_8(x_8).