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