Consider the following premises. forall x_5: Q_5(x_5) -> T_1(x_5). forall x_5: Q(x_5) -> Q_5(x_5). forall x_5: T_1(x_5) <-> Q(x_5). Can we infer forall x_5: T_1(x_5) <-> Q(x_5) from them? If possible, name the inference rules being used at each step.
That is one of the premises. Therefore, the answer is yes.