3 commits

Author	SHA1	Message	Date
Leonardo de Moura	f59a81d744	refactor(library/data): use new 'obtain' expression	2015-05-11 09:14:48 -07:00
Jeremy Avigad	a009cf24e3	feat(library/data/finset/{basic,card,comb}.lean: add theorems, including card of an injective image	2015-05-11 09:03:57 -07:00
Jeremy Avigad	68f7afa053	feat(library/data/finset/card.lean): begin theory of cardinality	2015-05-08 19:51:37 +10:00