Consider the following premises. For all y, y will go running if and only if y will make tea. For all y, y will go running or y will not make tea. Can we infer the following from them? For all y, if y makes tea, then y is running.
 From the fact that for all y, y will go running if and only if y will make tea we can infer that for all y, if y goes running, then y is making tea. Finally, from the fact that for all y, y will go running or y will not make tea we can infer that for all y, if y makes tea, then y is running. Therefore, the answer is yes.