Consider the following premises. If David goes running, then Charles is an electrician. David is running or Charles is playing tennis. For all x_10, if x_10 were an electrician, then x_10 is playing tennis. For all x_10, if x_10 plays tennis, then x_10 is an electrician. Can we infer the following from them? If we can, name the inference rule being used: Michael is rich.
We cannot infer that from the premises. Therefore the answer is no.