Consider the following premises. There is at least one x_11 for which if x_11 were a poet, then x_11 is a server. For all x_11, x_11 is a poet or x_11 is not a lawyer. For all x_11, x_11 is a lawyer if and only if x_11 is a server. Can we infer the following from them? For all x_11, if is not true that x_11 is a poet if and only if x_11 is a lawyer.
That contradicts the premises. Therefore the answer is no.