Planes and Spheres as Topological Manifolds. Stereographic Projection
Riccardi, Marco
Ramsey's Theorem
Riccardi, Marco
Categorical Pullbacks
Riccardi, Marco
The Definition of Topological Manifolds
Riccardi, Marco
Pocklington's Theorem and Bertrand's Postulate
Riccardi, Marco
Solution of Cubic and Quartic Equations
Riccardi, Marco
The Perfect Number Theorem and Wilson's Theorem
Riccardi, Marco
The Borsuk-Ulam Theorem
Korniłowicz, Artur, Riccardi, Marco
Fundamental Group of n-sphere for n ≥ 2
Riccardi, Marco, Korniłowicz, Artur
The Sylow Theorems
Riccardi, Marco
Free Magmas
Riccardi, Marco
Object-Free Definition of Categories
Riccardi, Marco