Consider the following premises. forall x_12: Q_12(x_12). w. forall x_12: T(x_12). Can we infer w and T(a_11) from them? If possible, name the inference rules being used at each step.
 From forall x_12: T(x_12), forall x_12: Q_12(x_12) we can infer forall x_12: T(x_12) and Q_12(x_12) via universal conjunction. From forall x_12: T(x_12) and Q_12(x_12) we can infer T(a_11) and Q_12(a_11) via universal instantiation. From T(a_11) and Q_12(a_11) we can infer T(a_11) via simplification. Finally, from w, T(a_11) we can infer w and T(a_11) via conjunction. Therefore, the answer is yes.