Modern physics lacks a unitary theory that applies to all four fundamental interactions. This monograph is a proposal for a single, complete, and coherent scheme of mathematically formulated elementary laws of nature.
The first chapter introduces axiomatically a mathematical-logical framework, which in effect enlarges the ontological repertoire of the language of mathematics. The second and third chapter present the Elementary Process Theory in the form of a scheme of seven well-formed closed expressions, formalized within this newly defined framework.