Modalities in homotopy type theory

Autor: Egbert Rijke, Michael Shulman, Bas Spitters
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Logical Methods in Computer Science, Vol Volume 16, Issue 1 (2020)
Druh dokumentu: article
ISSN: 1860-5974
DOI: 10.23638/LMCS-16(1:2)2020
Popis: Univalent homotopy type theory (HoTT) may be seen as a language for the category of $\infty$-groupoids. It is being developed as a new foundation for mathematics and as an internal language for (elementary) higher toposes. We develop the theory of factorization systems, reflective subuniverses, and modalities in homotopy type theory, including their construction using a "localization" higher inductive type. This produces in particular the ($n$-connected, $n$-truncated) factorization system as well as internal presentations of subtoposes, through lex modalities. We also develop the semantics of these constructions.
Databáze: Directory of Open Access Journals