Consider the following premises. For all x_1, x_1 is bored if and only if x_1 will go running. For all x_1, if x_1 plays squash, then x_1 is bored. For all x_1, x_1 will not go running. Can we infer the following from them? If we can, name the inference rule being used: For all x_1, x_1 will not go running.
That is one of the premises. Therefore, the answer is yes.