Title
CUBICAL TYPE THEORY: A CONSTRUCTIVE INTERPRETATION OF THE UNIVALENCE AXIOM
Abstract
This paper presents a type theory in which it is possible to directly manipulate n-dimensional cubes (points, lines, squares, cubes, etc.) based on an interpretation of dependent type theory in a cubical set model. This enables new ways to reason about identity types, for instance, function extensionality is directly provable in the system. Further, Voevodsky's univalence axiom is provable in this system. We also explain an extension with some higher inductive types like the circle and propositional truncation. Finally we provide semantics for this cubical type theory in a constructive meta-theory.
Year
DOI
Venue
2015
10.4230/LIPIcs.TYPES.2015.5
JOURNAL OF APPLIED LOGICS-IFCOLOG JOURNAL OF LOGICS AND THEIR APPLICATIONS
DocType
Volume
Issue
Conference
4
SP10
ISSN
Citations 
PageRank 
2055-3706
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Cyril Cohen131.79
Thierry Coquand21537225.49
Simon Huber3597.86
Anders Mörtberg4595.44