Consider the following premises. forall y: ~T_2(y). forall y: R_3(y) -> W(y). forall y: R_3(y) or ~W(y). forall y: W(y) -> T_2(y). Can we infer forall y: R_3(y) -> W(y) from them? If possible, name the inference rules being used at each step.
That is one of the premises. Therefore, the answer is yes.