For questions about homotopy type theory, including the homotopy theoretic interpretation of type theory or univalent type theory, univalence axiom, higher inductive types or related.

Homotopy type theory is a new branch of mathematics that arouse out of the independent discovery by Awodey and Warren (2009) and Voevodsky (2006) of a homotopy theoretic interpretation of type theory, showing a deep connection between two fields of mathematics, namely, homotopy theory and type theory.

A more detailed explanation can be found in the Homotopy type theory project website.