Tarski Geometry Axioms. Part III
Coghetto, Roland, Grabowski, Adam
U-Small and U-Locally Small Categories
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Pythagorean Tuning: Pentatonic and Heptatonic Scale
Coghetto, Roland
Finite Product of Semiring of Sets
Coghetto, Roland
Non-Trivial Universes and Sequences of Universes
Coghetto, Roland
Klein-Beltrami Model. Part II
Coghetto, Roland
Some Facts about Trigonometry and Euclidean Geometry
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Pascal’s Theorem in Real Projective Plane
Coghetto, Roland
Pappus’s Hexagon Theorem in Real Projective Plane
Coghetto, Roland
Klein-Beltrami model. Part III
Coghetto, Roland
Morley’s Trisector Theorem
Coghetto, Roland
Group of Homography in Real Projective Plane
Coghetto, Roland