3 commits

Author	SHA1	Message	Date
Floris van Doorn	c0b7740f13	order of arguments in group.mk has changed	2017-02-02 17:16:14 -05:00
Floris van Doorn	b08457c77f	move things to the Lean library, and update after changes in the Lean library	2016-11-24 00:11:55 -05:00
Floris van Doorn	0a15d184b2	cohomology: define cohomology as abelian groups and define the functorial action	2016-10-13 15:49:17 -04:00