Consider the following premises. For all x_11, x_11 will drive a car and x_11 will listen to a song. Can we infer the following from them? If we can, name the inference rule being used: Barbara is driving a car or Sarah is curious.
 From the fact that for all x_11, x_11 will drive a car and x_11 will listen to a song we can infer that Barbara is driving a car and Barbara is listening to a song via universal instantiation. From the fact that Barbara is driving a car and Barbara is listening to a song we can infer that Barbara is driving a car via simplification. Finally, from the fact that Barbara is driving a car we can infer that Barbara is driving a car or Sarah is curious via addition. Therefore, the answer is yes.