Consider the following premises. forall y: R_3(y) <-> W(y). forall y: S(y) <-> W(y). forall y: ~R_3(y). Can we infer forall y: ~S(y) from them?
 From forall y: R_3(y) <-> W(y), forall y: ~R_3(y) we can infer forall y: ~W(y). Finally, from forall y: S(y) <-> W(y), forall y: ~W(y) we can infer forall y: ~S(y). Therefore, the answer is yes.