Consider the following premises. For all x_8, x_8 is a nurse if and only if x_8 will sleep. For all x_8, x_8 is a musician or x_8 will sleep. For all x_8, x_8 is not a musician or x_8 is a taxi driver. There is at least one x_8 for which x_8 is not a nurse. Can we infer the following from them? For all x_8, x_8 is a nurse if and only if x_8 will sleep.
That is one of the premises. Therefore, the answer is yes.