Consider the following premises. For all x_8, if x_8 were an artist, then x_8 is playing squash. For all z, z will play squash. For all x_8, if x_8 plays squash, then x_8 is an artist. Can we infer the following from them? If we can, name the inference rule being used: David is a poet.
We cannot infer that from the premises. Therefore the answer is no.