Consider the following premises. For all x_13, x_13 will not sleep or x_13 is happy. For all x_13, x_13 will not make tea. There is at least one x_13 for which x_13 will make tea. Can we infer the following from them? If we can, name the inference rule being used: For all x_13, neither x_13 is a musician nor x_13 is happy.
That contradicts the premises. Therefore the answer is no.