Consider the following premises. For all x_16, x_16 will work or x_16 will not sleep. William is sleeping. For all x_16, x_16 will work if and only if x_16 will make tea. Can we infer the following from them? William is not making tea.
 From the fact that for all x_16, x_16 will work if and only if x_16 will make tea we can infer that for all x_16, if x_16 works, then x_16 is making tea. From the fact that for all x_16, x_16 will work or x_16 will not sleep we can infer that for all x_16, if x_16 sleeps, then x_16 is working. From the fact that for all x_16, if x_16 sleeps, then x_16 is working, and that for all x_16, if x_16 works, then x_16 is making tea we can infer that for all x_16, if x_16 sleeps, then x_16 is making tea. From the fact that for all x_16, if x_16 sleeps, then x_16 is making tea we can infer that if William sleeps, then William is making tea. Finally, from the fact that if William sleeps, then William is making tea, and that William is sleeping we can infer that William is making tea, which contradicts that William is not making tea. Therefore, the answer is no.