Spectral

Author	SHA1	Message	Date
Steve Awodey	6e13cb9dad	small changes	2017-04-27 17:09:20 -04:00
Floris van Doorn	bb209af2e8	continue with derived couple of graded R-modules, almost finish defining the maps	2017-04-20 22:58:33 -04:00
Egbert Rijke	fd5d774e55	is_embedding_ab_subgroup_of_subgroup_incl	2017-04-20 15:45:00 -04:00
Egbert Rijke	07d775563b	ab_subgroup_of_subgroup_incl	2017-04-20 14:59:55 -04:00
Floris van Doorn	ec376b407e	move stuff about subgroups to subgroup	2017-04-20 14:42:54 -04:00
Floris van Doorn	aefc8eccc1	define submodules, quotient modules and homology of module morphisms	2017-04-13 20:39:04 -04:00
Egbert Rijke	159ea323ab	SES_hom extension lemma	2017-02-16 22:26:06 -05:00
Floris van Doorn	c0b7740f13	order of arguments in group.mk has changed	2017-02-02 17:16:14 -05:00
Steve Awodey	271459d533	image of a surjection is the codomain	2017-01-26 16:44:49 -05:00
Floris van Doorn	7f6752e14f	Show that the Eilenberg-MacLane-space-functor induces an equivalence of categories	2017-01-14 21:05:34 +01:00
Steve Awodey	c814534104	First Isomorphism Theorem for AbGroups with prelim.s	2016-12-08 16:20:14 -05:00
Egbert Rijke	d3cba4b95d	simplifty the trivial subgroup	2016-12-01 15:43:05 -05:00
Egbert Rijke	de641aac71	fix	2016-12-01 14:41:36 -05:00
Egbert Rijke	c0a6e581e6	Merge branch 'master' of https://github.com/cmu-phil/Spectral	2016-12-01 14:39:23 -05:00
Egbert Rijke	652ef70739	some work, I guess	2016-12-01 14:39:10 -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	9df0b25ae5	some additions to the smash product and direct sums	2016-11-14 14:44:29 -05:00
Egbert Rijke	ec6c4d8339	image_incl_eq_one	2016-11-10 16:25:00 -05:00
Egbert Rijke	7ab6eafc3c	image of an abelian group is abelian	2016-11-03 23:30:44 -04:00
Egbert Rijke	699531a74c	Merge branch 'master' of https://github.com/cmu-phil/Spectral	2016-11-03 16:42:22 -04:00
Egbert Rijke	81e6c07f23	progress on derived exact couples	2016-11-03 16:42:12 -04:00
Floris van Doorn	704717e9ae	minor changes	2016-11-03 15:34:06 -04:00
Egbert Rijke	b57eadc56a	image of a boundary is subgroup of the kernel	2016-10-27 15:52:47 -04:00
Floris van Doorn	29bf3bdd8e	clean-up in imports/opens of the files in the algebra folder	2016-10-13 16:02:04 -04:00
Ulrik Buchholtz	f826a7a711	complete is_full_subgroup	2016-09-15 15:06:54 -04:00
Ulrik Buchholtz	22d8fad087	complete is_trivial_subgroup	2016-09-15 15:04:20 -04:00
Floris van Doorn	17d76bdb31	rename group_basics to subgroup	2016-09-14 17:31:52 -04:00

27 commits