Tanaka, Yutaka. "Whitehead's Principle of Relativity." Ed. Zang, Yanyang. Hebie, China: Hebie University Press, 2003. 264-269.

Abstract

           
Einstein’s principle of relativity has two components: one is the special principle, and the other is the general one. The former states that all inertial systems are equivalent for the description of natural phenomena, while the other claims that the same equivalence should hold generally in any chosen frame of reference. Whitehead did not rely on either of them. First, he pointed out in The principle of Natural Knowledge that the physical content of Einstein’s theory can be deduced without relying on Einstein’s principles. The special theory of relativity correlates space to time through the Lorentz-Transformation, which Einstein deduced from the combination of the special principle and the principle of the constant velocity of light. Whitehead, on the other hand, deduced the same transformation from the weaker principles of kinematics and geometry, i.e., (i) the uniformity and symmetry of space-time, (ii) the symmetry and transitiveness of transformation, and sof forth…