• Media type: Text; E-Article; Electronic Conference Proceeding
  • Title: Univalent Monoidal Categories
  • Contributor: Wullaert, Kobe [Author]; Matthes, Ralph [Author]; Ahrens, Benedikt [Author]
  • imprint: Schloss Dagstuhl – Leibniz-Zentrum für Informatik, 2023
  • Language: English
  • DOI: https://doi.org/10.4230/LIPIcs.TYPES.2022.15
  • Keywords: Proof assistant Coq ; UniMath library ; Monoidal categories ; Univalence ; Displayed (bi)categories ; Rezk completion
  • Origination:
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  • Description: Univalent categories constitute a well-behaved and useful notion of category in univalent foundations. The notion of univalence has subsequently been generalized to bicategories and other structures in (higher) category theory. Here, we zoom in on monoidal categories and study them in a univalent setting. Specifically, we show that the bicategory of univalent monoidal categories is univalent. Furthermore, we construct a Rezk completion for monoidal categories: we show how any monoidal category is weakly equivalent to a univalent monoidal category, universally. We have fully formalized these results in UniMath, a library of univalent mathematics in the Coq proof assistant.
  • Access State: Open Access