Consider the following premises. Richard is driving a car or Robert is not an artist. Patricia is not a sailor. Patricia is a sailor if and only if Richard is driving a car. If Richard drives a car, then Robert is an artist. Can we infer the following from them? Robert is an artist.
 From the fact that Patricia is a sailor if and only if Richard is driving a car, and that Patricia is not a sailor we can infer that Richard is not driving a car. From the fact that Richard is driving a car or Robert is not an artist we can infer that if Robert were an artist, then Richard is driving a car. From the fact that if Richard drives a car, then Robert is an artist, and that if Robert were an artist, then Richard is driving a car we can infer that Richard is driving a car if and only if Robert is an artist. Finally, from the fact that Richard is driving a car if and only if Robert is an artist, and that Richard is not driving a car we can infer that Robert is not an artist, which contradicts that Robert is an artist. Therefore, the answer is no.