What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_8: P_8(x_8) or Q_8(x_8). forall x_8: ~P_5(x_8). forall x_8: ~Q_8(x_8) or U(x_8). forall x_8: P_5(x_8) <-> W_1(x_8). forall x_8: ~P_8(x_8) or W_1(x_8).
forall x_8: Q_8(x_8) or W_1(x_8). forall x_8: P_5(x_8) -> W_1(x_8). forall x_8: W_1(x_8) -> P_5(x_8). forall x_8: ~W_1(x_8).