Consider the following premises. If Mary were a doctor, then it is late. If Barbara were a scientist, then Mary is a doctor. If it is overcast, then it is late. If it is sunny, then it is overcast. It is sunny or Barbara is a scientist. Can we infer the following from them? If we can, name the inference rule being used: Susan is a poet.
We cannot infer that from the premises. Therefore the answer is no.