Published August 16, 2026
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Geometry's Unwritten Sixth Rule for Flat Plane
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Euclid's geometry silently assumes that at any point, directions are interchangeable (rotations act transitively). This note builds an axiom system, the Apex Plane, flat at two points yet where this assumption fails: no rotation exists there, one direction is distinguished, and lines terminate. Flatness and homogeneity of directions are shown to be independent properties. Written as a letter to Euclid on the geometry of the degenerate dot, which is the point at infinity made real.
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Additional details
Additional titles
- Subtitle
- A Letter to Euclid, On Geometry of Degenerate Dot
Dates
- Issued
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2026-08-16
References
- Euclid. The Thirteen Books of the Elements, translated by Sir Thomas L. Heath. Cambridge University Press, 1908; Dover reprint, 1956
- C. F. Gauss. Disquisitiones generales circa superficies curvas. Commentationes Societatis Regiae Scientiarum Gottingensis Recentiores, 6 (1828), 99–146
- H. S. M. Coxeter. Projective Geometry, 2nd edition. Springer, New York, 1974.
- A. Einstein and M. Grossmann. Entwurf einer verallgemeinerten Relativitätstheorie und einer Theorie der Gravitation. Zeitschrift für Mathematik und Physik, 62 (1913), 225–261.
- Planck Collaboration (N. Aghanim et al.). Planck 2018 results. VI. Cosmological parameters. Astronomy & Astrophysics, 641 (2020), A6.
- S. Carniani, F. D'Eugenio, R. Maiolino, et al. A shining cosmic dawn: spectroscopic confirmation of two luminous galaxies at z ∼ 14. Nature, 633 (2024), 318–322
- B. O'Neill. Semi-Riemannian Geometry. Academic Press, New York, 1983