Consider the following premises. p_6 -> P_2(d_2). p -> r_1. forall x: P_2(x) -> T(x). T(d_2) -> p. Can we infer p_6 -> r_1 from them?
 From forall x: P_2(x) -> T(x) we can infer P_2(d_2) -> T(d_2). From p_6 -> P_2(d_2), P_2(d_2) -> T(d_2) we can infer p_6 -> T(d_2). From T(d_2) -> p, p -> r_1 we can infer T(d_2) -> r_1. Finally, from p_6 -> T(d_2), T(d_2) -> r_1 we can infer p_6 -> r_1. Therefore, the answer is yes.