The Preferred System of Reference Reloaded

Let us first gather some fundamental definitions that will be helpful for our forthcoming discussion, namely: postulate, principle and axiom. A postulate is a statement that assumes or suggests an evident truth and which is used as the basis of reasoning in a given theory. Likewise, a principle is a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning. An axiom is a premise or starting point of reasoning. As classically conceived, an axiom is a premise so evident as to be accepted as true without controversy. Thus, according to the respective definitions one can assure that in essence the three concepts can be understood as synonymous.