Consider the following premises. Jennifer is not playing tennis. Elisabeth is an artist if and only if it is sunny. Jennifer is playing tennis if and only if it is sunny. If it is sunny, then Elisabeth is an artist. Can we infer the following from them? Elisabeth is an artist.
 From the fact that Elisabeth is an artist if and only if it is sunny we can infer that if Elisabeth were an artist, then it is sunny. From the fact that if Elisabeth were an artist, then it is sunny, and that if it is sunny, then Elisabeth is an artist we can infer that Elisabeth is an artist if and only if it is sunny. From the fact that Jennifer is playing tennis if and only if it is sunny, and that Jennifer is not playing tennis we can infer that it is not sunny. Finally, from the fact that Elisabeth is an artist if and only if it is sunny, and that it is not sunny we can infer that Elisabeth is not an artist, which contradicts that Elisabeth is an artist. Therefore, the answer is no.