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(i). forall y_2: W(y_2) <-> T_2(y_2).
forall y_2: W(y_2) -> T_2(y_2) can be inferred via the universal biconditional elimination rule. forall y_2: T_2(y_2) -> W(y_2) can be inferred via the universal biconditional elimination rule.