Consider the following premises. Michael is not a mechanic. Michael is a mechanic or Mary is an astronaut. It is snowing and Richard is a nurse. Can we infer the following from them? Mary is an astronaut and it is snowing.
 From the fact that Michael is a mechanic or Mary is an astronaut, and that Michael is not a mechanic we can infer that Mary is an astronaut. From the fact that it is snowing and Richard is a nurse we can infer that it is snowing. Finally, from the fact that Mary is an astronaut, and that it is snowing we can infer that Mary is an astronaut and it is snowing. Therefore, the answer is yes.