
The assumption that the universe can be described using a coordinate system is very strong. To reveal some of the structure in such an assumption, I present in this paper axioms for flat space-time which allow the coordinate system to be derived. In this way a structure more general than that of a coordinate system is suggested.
Global differential geometry of Lorentz manifolds, manifolds with indefinite metrics, Linear incidence geometry
Global differential geometry of Lorentz manifolds, manifolds with indefinite metrics, Linear incidence geometry
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