English

An homotopical description of small presheaves

Category Theory 2021-12-14 v1

Abstract

This article describes the cocompletion of a category CC with finite limits as the homotopy category of some equivalence 2-groupoids in coproducts of elements of CC. This yields a simple link between several definitions of an infinitary pretopos.

Keywords

Cite

@article{arxiv.2112.06092,
  title  = {An homotopical description of small presheaves},
  author = {Brice Le Grignou},
  journal= {arXiv preprint arXiv:2112.06092},
  year   = {2021}
}

Comments

33 pages, comments are welcome