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(f_3) or q. forall y: T(y) -> Q(y). forall y: Q(y) -> T(y). ~T(f_3).
forall y: T(y) <-> Q(y) can be inferred via the universal biconditional introduction rule. forall y: Q(y) <-> T(y) can be inferred via the universal biconditional introduction rule.