Consider the following premises. There is at least one x_5 for which if x_5 were a carpenter, then x_5 is taking a plane. For all x_5, x_5 will take a plane if and only if x_5 is a carpenter. Can we infer the following from them? For all x_5, the fact that x_5 takes a plane does not imply that x_5 is a carpenter.
That contradicts the premises. Therefore the answer is no.