3 commits

Author	SHA1	Message	Date
Jakob von Raumer	7374149758	chore(library/hott) change equiv.lean to use structures and more typeclass inference	2014-11-28 22:50:43 -08:00
Floris van Doorn	e97b0b4e8e	feat(hott/types): port more of the sigma library from Coq ... prove theorems about interaction of sigma types and n-types, including the fact that sigmas preserve n-types	2014-11-22 17:44:12 -08:00
Floris van Doorn	e8b076e460	feat(hott/types/sigma): port large part of the sigma library from the hott library ... most importantly, prove the characterization of paths in sigma types	2014-11-22 17:44:12 -08:00