What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y: W_2(y) <-> P(y). forall y: T_2(y) -> P(y). forall y: W_2(y) -> T_2(y). exists y: P(y) -> W_2(y).
forall y: W_2(y) -> P(y). exists y: P(y) -> T_2(y). exists y: T_2(y) -> W_2(y). forall y: W_2(y) -> P(y). forall y: P(y) -> W_2(y).