2 commits

Author	SHA1	Message	Date
Jakob von Raumer	f023e4999c	feat(library/hott) prove that a groupoid on contractible object type is a group	2014-12-09 19:12:54 -05:00
Jakob von Raumer	7bfd897f9d	feat(library/hott) add groupoid definition	2014-12-09 19:12:54 -05:00