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Related papers: Homotopy Theoretic Models of Type Theory

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We construct a "diagonal" cofibrantly generated model structre on the category of simplicial objects in the category of topological categories sCat_{Top}, which is the category of diagrams [\Delta^{op}, Cat_{Top}]. Moreover, we prove that…

Algebraic Topology · Mathematics 2011-12-07 Ilias Amrani

Given any model category, or more generally any category with weak equivalences, its simplicial localization is a simplicial category which can rightfully be called the "homotopy theory" of the model category. There is a model category…

Algebraic Topology · Mathematics 2007-05-23 Julia E. Bergner

We present a new coherence theorem for comprehension categories, providing strict models of dependent type theory with all standard constructors, including dependent products, dependent sums, identity types, and other inductive types.…

Logic · Mathematics 2016-04-20 Peter LeFanu Lumsdaine , Michael A. Warren

This paper is part of a series of papers about homotopy theory of strict $n$-categories. In the first paper of this series, we gave conditions that guarantee the existence of a Thomason model category structure on the category of strict…

Algebraic Topology · Mathematics 2015-03-11 Dimitri Ara , Georges Maltsiniotis

For a balanced pair $(\mathcal{X},\mathcal{Y})$ in an abelian category, we investigate when the chain homotopy categories ${\bf K}(\mathcal{X})$ and ${\bf K}(\mathcal{Y})$ are triangulated equivalent. To this end, we realize these chain…

Representation Theory · Mathematics 2026-04-23 Jiangsheng Hu , Wei Ren , Xiaoyan Yang , Hanyang You

We present two Dialectica-like constructions for models of intensional Martin-L\"of type theory based on G\"odel's original Dialectica interpretation and the Diller-Nahm variant, bringing dependent types to categorical proof theory. We set…

Category Theory · Mathematics 2021-05-04 Sean K. Moss , Tamara von Glehn

We develop a constructive model of homotopy type theory in a Quillen model category that classically presents the usual homotopy theory of spaces. Our model is based on presheaves over the cartesian cube category, a well-behaved…

Algebraic Topology · Mathematics 2026-04-21 Steve Awodey , Evan Cavallo , Thierry Coquand , Emily Riehl , Christian Sattler

Homotopy limits and colimits are homotopical replacements for the usual limits and colimits of category theory, which can be approached either using classical explicit constructions or the modern abstract machinery of derived functors. Our…

Algebraic Topology · Mathematics 2009-07-01 Michael Shulman

In a case study we investigate whether off the shelf higher-order theorem provers and model generators can be employed to automate reasoning in and about quantified multimodal logics. In our experiments we exploit the new TPTP…

Artificial Intelligence · Computer Science 2009-05-28 Christoph Benzmueller

We introduce global model categories as a general framework to capture several phenomena in global equivariant homotopy theory. We then construct genuine stabilizations of these, generalizing the usual passage from unstable to stable global…

Algebraic Topology · Mathematics 2024-09-06 Tobias Lenz , Michael Stahlhauer

In this paper we define intensional models for the classical theory of types, thus arriving at an intensional type logic ITL. Intensional models generalize Henkin's general models and have a natural definition. As a class they do not…

Logic · Mathematics 2007-05-23 Reinhard Muskens

The category of (colored) props is an enhancement of the category of colored operads, and thus of the category of small categories. In this paper, the second in a series on "higher props," we show that the category of all small colored…

Algebraic Topology · Mathematics 2018-04-17 Philip Hackney , Marcy Robertson

We discuss the homotopy type theory library in the Lean proof assistant. The library is especially geared toward synthetic homotopy theory. Of particular interest is the use of just a few primitive notions of higher inductive types, namely…

Logic in Computer Science · Computer Science 2017-09-21 Floris van Doorn , Jakob von Raumer , Ulrik Buchholtz

We introduce $\infty$-type theories as an $\infty$-categorical generalization of the categorical definition of type theories introduced by the second named author. We establish analogous results to the previous work including the…

Category Theory · Mathematics 2022-05-03 Hoang Kim Nguyen , Taichi Uemura

We build free, bigraded bidifferential algebra models for the forms on a complex manifold, with respect to a strong notion of quasi-isomorphism and compatible with the conjugation symmetry. This answers a question of Sullivan. The resulting…

Algebraic Topology · Mathematics 2024-11-27 Jonas Stelzig

Small B\'{e}nabou's bicategories and, in particular, Mac Lane's monoidal categories, have well-understood classifying spaces, which give geometric meaning to their cells. This paper contains some contributions to the study of the…

Category Theory · Mathematics 2013-09-18 M. Calvo , A. M. Cegarra , B. A. Heredia

The purpose of this paper is to generalise Sullivan's rational homotopy theory to non-nilpotent spaces, providing an alternative approach to defining Toen's schematic homotopy types over any field k of characteristic zero. New features…

Algebraic Topology · Mathematics 2009-02-04 J. P. Pridham

We propose an abstract notion of a type theory to unify the semantics of various type theories including Martin-L\"{o}f type theory, two-level type theory and cubical type theory. We establish basic results in the semantics of type theory:…

Category Theory · Mathematics 2023-08-10 Taichi Uemura

We study 2-monads and their algebras using a Cat-enriched version of Quillen model categories, emphasizing the parallels between the homotopical and 2-categorical points of view. Every 2-category with finite limits and colimits has a…

Category Theory · Mathematics 2010-09-10 Stephen Lack

$\infty$-category theory was originally developed in the context of classical homotopy theory using standard set theoretical assumptions, but has since been extended to a variety of mathematical foundations. One such successful effort,…

Category Theory · Mathematics 2025-08-13 Nima Rasekh