Consider the following premises. For all x_14, if x_14 were a musician, then x_14 is a doctor. For all x_15, x_15 is a musician. If Elisabeth were a doctor, then it is late. Can we infer the following from them? It is not late.
 From the fact that for all x_15, x_15 is a musician we can infer that Elisabeth is a musician. From the fact that for all x_14, if x_14 were a musician, then x_14 is a doctor we can infer that if Elisabeth were a musician, then Elisabeth is a doctor. From the fact that if Elisabeth were a musician, then Elisabeth is a doctor, and that Elisabeth is a musician we can infer that Elisabeth is a doctor. Finally, from the fact that if Elisabeth were a doctor, then it is late, and that Elisabeth is a doctor we can infer that it is late, which contradicts that It is not late. Therefore, the answer is no.