3 commits

Author	SHA1	Message	Date
Leonardo de Moura	df51ba8b7c	feat(library/definitional/projection): use strict implicit inference, closes #344	2014-11-25 18:04:06 -08:00
Jeremy Avigad	4420f0dc0c	feat(library/algebra/group): add ordered semigroups	2014-11-17 18:32:14 -08:00
Jeremy Avigad	0d982cceed	feat(library/algebra/ring): begin theory of semirings and rings	2014-11-14 17:27:35 -08:00