Consider the following premises. For all x_14, x_14 is happy or x_14 is not a cashier. There is at least one x_14 for which if x_14 were a musician, then x_14 is a cashier. For all x_14, if x_14 goes running, then x_14 is fast. For all x_14, if x_14 were happy, then x_14 is running. For all x_14, if x_14 were fast, then x_14 is a musician. Can we infer the following from them? For all x_14, if x_14 were fast, then x_14 is a musician.
That is one of the premises. Therefore, the answer is yes.