Consider the following premises. forall x_16: T(x_16). forall x_16: P_16(x_16) -> U_1(x_16). forall x_16: Q_16(x_16) -> U_1(x_16). forall x_16: P_16(x_16) or Q_16(x_16). T(a_11) -> s. Can we infer s from them? If possible, name the inference rules being used at each step.
 From forall x_16: P_16(x_16) -> U_1(x_16), forall x_16: Q_16(x_16) -> U_1(x_16), forall x_16: P_16(x_16) or Q_16(x_16) we can infer forall x_16: U_1(x_16) via universal disjunction elimination. From forall x_16: T(x_16), forall x_16: U_1(x_16) we can infer forall x_16: T(x_16) and U_1(x_16) via universal conjunction. From forall x_16: T(x_16) and U_1(x_16) we can infer T(a_11) and U_1(a_11) via universal instantiation. From T(a_11) and U_1(a_11) we can infer T(a_11) via simplification. Finally, from T(a_11) -> s, T(a_11) we can infer s via modus ponens. Therefore, the answer is yes.