What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? w or ~S_16(a_16). forall x_16: R_16(x_16) or S_16(x_16). w <-> r_7. ~R_16(a_16) or r_7.
S_16(a_16) -> w. w -> r_7. r_7 -> w.