Consider the following premises. For all z, z is not an artist. Richard is a lawyer. If John makes tea, then Jessica is an artist. Can we infer the following from them? If we can, name the inference rule being used: John is making tea.
 From the fact that for all z, z is not an artist we can infer that Jessica is not an artist via universal instantiation. Finally, from the fact that if John makes tea, then Jessica is an artist, and that Jessica is not an artist we can infer that John is not making tea via modus tollens, which contradicts that John is making tea. Therefore, the answer is no.