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: Q_2(c_3) or t. t -> T(c_3). forall y: Q_2(y) -> T(y). forall y: T(y) -> Q_2(y).
forall y: Q_2(y) <-> T(y) can be inferred via the universal biconditional introduction rule. forall y: T(y) <-> Q_2(y) can be inferred via the universal biconditional introduction rule.