Consider the following premises. For all z_2, z_2 is a musician if and only if z_2 is an astronaut. For all z_2, z_2 is a musician or z_2 is a poet. For all z_2, z_2 is not an astronaut. Can we infer the following from them? If we can, name the inference rule being used: Patricia is not a police officer.
We cannot infer that from the premises. Therefore the answer is no.