Consider the following premises. Jessica is a nurse or it is overcast. For all y, if y were a bartender, then y is a nurse. If it is overcast, then Jessica is a bartender. Karen is driving a car. For all y, if y were a nurse, then y is a bartender. Can we infer the following from them? If we can, name the inference rule being used: If Karen drives a car, then Jessica is a bartender.
We cannot infer that from the premises. Therefore the answer is no.