Consider the following premises. There is at least one y_1 for which y_1 is not an artist or y_1 will sleep. For all y_1, y_1 is an artist. Can we infer the following from them? If we can, name the inference rule being used: For all y_1, neither y_1 will work nor y_1 will sleep.
That contradicts the premises. Therefore the answer is no.