# nLab Oberwolfach HoTT-Coq tutorial

At an Oberwolfach workshop in 2011 on homotopy type theory, Andrej Bauer and Peter LeFanu Lumsdaine created a tutorial that walks the reader through the proof that the univalence axiom implies functional extensionality, formalized entirely in Coq-proof assistant code.

For a pdf-version of the tutorial see

In order to follow the proof explicitly in Coq-itself, download the accompanying source files here:

and feed them into your Coq. See the README file there for further hints.

A rephrasing of the Coq-proofs given there in terms of ordinary language is given in

• Carlo Angiuli, Univalence implies function extensionality (blog, pdf)

category: reference

Revised on January 14, 2012 07:38:52 by Urs Schreiber (89.204.130.46)