Core Concepts
Homotopy type theory serves as an internal language for diagrams of ∞-logoses, enabling reasoning about higher-dimensional logical relations.
Abstract
Homotopy type theory and ∞-logoses are closely related, allowing translation of theorems between them.
Diagrams of ∞-logoses connected by functors and natural transformations pose challenges for plain homotopy type theory.
Mode sketches provide a method to internally reconstruct diagrams of ∞-logoses, ensuring sufficient reasoning capabilities.
The main result involves associating axioms in type theory to construct diagrams of ∞-logoses.
Synthetic Tait computability and mode sketches offer alternative methods for constructing logical relations.
Oplax limits of diagrams of (∞, 1)-categories generalize the Artin gluing and provide insights into logical relations.
Modalities in homotopy type theory and ∞-logoses play a crucial role in understanding the internal languages of diagrams.
Stats
"An ∞-logos is a place for homotopy theory like an ordinary logos for set-level mathematics."
"Homotopy type theory extends Martin-Löf type theory with the univalence axiom and higher inductive types."
"Shulman has shown that any ∞-logos can be interpreted using homotopy type theory as an internal language."
Quotes
"Homotopy type theory is an internal language of an ∞-logos."
"Mode sketches provide an alternative synthetic method of constructing logical relations."
"Oplax limits of diagrams classify oplax natural transformations and generalize the Artin gluing."