Consider the following premises. For all x_8, x_8 will make tea if and only if x_8 is rich. For all x_8, x_8 will drive a car or x_8 will climb a mountain. For all x_8, x_8 is not rich. For all x_8, x_8 will make tea if and only if x_8 will drive a car. Can we infer the following from them? For all x_8, x_8 will climb a mountain.
 From the fact that for all x_8, x_8 will make tea if and only if x_8 is rich, and that for all x_8, x_8 is not rich we can infer that for all x_8, x_8 will not make tea. From the fact that for all x_8, x_8 will make tea if and only if x_8 will drive a car, and that for all x_8, x_8 will not make tea we can infer that for all x_8, x_8 will not drive a car. Finally, from the fact that for all x_8, x_8 will drive a car or x_8 will climb a mountain, and that for all x_8, x_8 will not drive a car we can infer that for all x_8, x_8 will climb a mountain. Therefore, the answer is yes.