Tarski Geometry Axioms. Part IV – Right Angle
Coghetto, Roland, Grabowski, Adam
A Case Study of Transporting Urysohn’s Lemma from Topology via Open Sets into Topology via Neighborhoods
Coghetto, Roland
Tarski Geometry Axioms. Part V – Half-planes and Planes
Coghetto, Roland, Grabowski, Adam
Circumcenter, Circumcircle and Centroid of a Triangle
Coghetto, Roland
Tarski Geometry Axioms. Part III
Coghetto, Roland, Grabowski, Adam
U-Small and U-Locally Small Categories
Coghetto, Roland
Altitude, Orthocenter of a Triangle and Triangulation
Coghetto, Roland
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
Uniform Space
Coghetto, Roland
Klein-Beltrami Model. Part II
Coghetto, Roland