English

Every 2-Segal space is unital

Category Theory 2021-03-31 v2 Algebraic Topology Combinatorics

Abstract

We prove that every 2-Segal space is unital.

Cite

@article{arxiv.1905.09580,
  title  = {Every 2-Segal space is unital},
  author = {Matthew Feller and Richard Garner and Joachim Kock and May U. Proulx and Mark Weber},
  journal= {arXiv preprint arXiv:1905.09580},
  year   = {2021}
}

Comments

4 pages; v2: simplified and unified proofs

R2 v1 2026-06-23T09:19:25.780Z