Consider the following premises. It is sunny. If Jessica were a sailor, then Michael is a doctor. For all x_14, x_14 is a sailor if and only if x_14 is a lawyer. If Michael were a doctor, then Jessica is a sailor. If Jessica were a lawyer, then it is not sunny. Can we infer the following from them? Michael is a doctor.
 From the fact that for all x_14, x_14 is a sailor if and only if x_14 is a lawyer we can infer that Jessica is a sailor if and only if Jessica is a lawyer. From the fact that if Jessica were a lawyer, then it is not sunny, and that it is sunny we can infer that Jessica is not a lawyer. From the fact that if Jessica were a sailor, then Michael is a doctor, and that if Michael were a doctor, then Jessica is a sailor we can infer that Jessica is a sailor if and only if Michael is a doctor. From the fact that Jessica is a sailor if and only if Jessica is a lawyer, and that Jessica is not a lawyer we can infer that Jessica is not a sailor. Finally, from the fact that Jessica is a sailor if and only if Michael is a doctor, and that Jessica is not a sailor we can infer that Michael is not a doctor, which contradicts that Michael is a doctor. Therefore, the answer is no.