Consider the following premises. For all z, z is a lawyer. For all z, z will work or z is a taxi driver. For all z, if z works, then z is not a lawyer. Can we infer the following from them? Elisabeth is not a taxi driver.
 From the fact that for all z, if z works, then z is not a lawyer, and that for all z, z is a lawyer we can infer that for all z, z will not work. Finally, from the fact that for all z, z will work or z is a taxi driver, and that for all z, z will not work we can infer that for all z, z is a taxi driver, which contradicts that Elisabeth is not a taxi driver. Therefore, the answer is no.