Consider the following premises. Jessica is playing squash. Thomas is making tea. If Jessica plays squash, then David is a server. If Linda were curious, then David is a server. Can we infer the following from them? If we can, name the inference rule being used: David is a server and Thomas is making tea.
 From the fact that Jessica is playing squash we can infer that Jessica is playing squash or Linda is curious via addition. From the fact that if Jessica plays squash, then David is a server, that if Linda were curious, then David is a server, and that Jessica is playing squash or Linda is curious we can infer that David is a server via disjunction elimination. Finally, from the fact that David is a server, and that Thomas is making tea we can infer that David is a server and Thomas is making tea via conjunction. Therefore, the answer is yes.