Velocity addition laws which can coexist with the velocity addition law in the special theory of relativity

The only velocity addition law currently regarded as correct is that for the special theory of relativity. However, this paper concludes that there is a justification for the existence of velocity addition laws derived from the standpoint of Lorentz, who had doubts about the special theory of relativity. The velocity addition laws presented in this paper are not new, and are equations which are easy to understand in terms of common sense. Aside from the velocity addition law in the special theory of relativity, there are also velocity addition laws which match experimental results. (C) 2014 Physics Essays Publication.