What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? r or w. w -> S_8(a_8). ~r or R_8(a_8). forall x_8: R_8(x_8) -> S_8(x_8).
w or R_8(a_8). R_1(a_8) -> ~r.