English

Categories of categories

Category Theory 2007-09-07 v1 General Topology

Abstract

A certain amount of category theory is developed in an arbitrary finitely complete category with a factorization system on it, playing the role of the comprehensive factorization system on Cat. Those aspects related to the concepts of finality (in particular terminal objects), discreteness and components, representability, colimits and universal arrows, seem to be best expressed in this very general setting. Furthermore, at this level we are in fact doing not only (E,M)-category theory but, in a sense, also (E,M)-topology. Other axioms, regarding power objects, duality, exponentials and the arrow object, are considered.

Keywords

Cite

@article{arxiv.0709.0837,
  title  = {Categories of categories},
  author = {Claudio Pisani},
  journal= {arXiv preprint arXiv:0709.0837},
  year   = {2007}
}

Comments

29 pages

R2 v1 2026-06-21T09:14:33.349Z