Consider the following premises. For all x_17, if x_17 were an astronaut, then x_17 is a writer. For all x_17, x_17 is a writer or x_17 is not a bartender. For all x_17, x_17 is a bartender. Can we infer the following from them? If we can, name the inference rule being used: Patricia is not rich.
We cannot infer that from the premises. Therefore the answer is no.