Semiring of Sets
Coghetto, Roland
Groups – Additive Notation
Coghetto, Roland
Tarski Geometry Axioms. Part V – Half-planes and Planes
Coghetto, Roland, Grabowski, Adam
Some Facts about Trigonometry and Euclidean Geometry
Coghetto, Roland
A Case Study of Transporting Urysohn’s Lemma from Topology via Open Sets into Topology via Neighborhoods
Coghetto, Roland
Altitude, Orthocenter of a Triangle and Triangulation
Coghetto, Roland
Klein-Beltrami model. Part III
Coghetto, Roland
Semiring of Sets: Examples
Coghetto, Roland
Klein-Beltrami Model. Part II
Coghetto, Roland
Klein-Beltrami Model. Part I
Coghetto, Roland
Morley’s Trisector Theorem
Coghetto, Roland
Duality Notions in Real Projective Plane
Coghetto, Roland