4 commits

Author	SHA1	Message	Date
Floris van Doorn	8e366e08c3	Finish the universal property of the direct sum	2016-11-23 23:54:32 -05:00
Floris van Doorn	9df0b25ae5	some additions to the smash product and direct sums	2016-11-14 14:44:29 -05:00
Floris van Doorn	29bf3bdd8e	clean-up in imports/opens of the files in the algebra folder	2016-10-13 16:02:04 -04:00
Egbert Rijke	038bbb8be3	split group_constructions into several files	2016-10-13 15:04:57 -04:00