Leonardo de Moura
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339a7334f8
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feat(library/data/finset/card): add exists_two_of_card_gt_one
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2015-07-03 14:01:15 -07:00 |
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Jeremy Avigad
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7d204fdd91
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refactor(library/data/finset/card.lean): add useful facts, shorter proof of eq_card_of_eq_subset
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2015-06-20 21:13:00 -07:00 |
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Leonardo de Moura
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ee0d919c6f
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feat(library/data/finset/card): add eq_of_card_eq_of_subset theorem
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2015-06-19 20:05:32 -07:00 |
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Leonardo de Moura
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70fc05294b
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refactor(library/local_context): avoid hack in local_context
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2015-06-18 15:41:00 -07:00 |
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Leonardo de Moura
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1b5d1136d9
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refactor(library/data/finset/card): remove unnecessary xrewrite
We can use the default 'rewrite' tactic after the commits pushed today.
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2015-06-10 18:46:16 -07:00 |
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Jeremy Avigad
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3c1f5f4e33
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feat(library/data/{set,finset}): add more cardinality facts, rename, and add a lemma from Haitao
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2015-06-10 16:39:17 -07:00 |
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Jeremy Avigad
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370860e1b0
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feat(library/data/fintype,finset): add cardinality for finite types from Haitao Zhang
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2015-06-05 09:32:00 -07:00 |
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Jeremy Avigad
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df69bb4cfc
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feat(library/*): add theorems from Haitao on sets and functions, clean up
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2015-06-04 11:55:25 -07:00 |
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Jeremy Avigad
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7c92161e49
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refactor(library/data/finset/basic.lean): change order of arguments to induction tactic
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2015-05-25 16:50:42 -07:00 |
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Leonardo de Moura
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1665ee39e8
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feat(library/data/finset/card): test 'induction' tactic at finset
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2015-05-19 15:56:51 -07:00 |
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Leonardo de Moura
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19361f0196
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feat(library/unifier): do not fire type class resolution as last resort when type contains metavariables
see discussion at #604
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2015-05-18 15:45:23 -07:00 |
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Jeremy Avigad
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566acf4b31
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feat(library/data/finset/card.lean): add card_Union_of_disjoint and other theorems
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2015-05-17 19:06:10 +10:00 |
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Leonardo de Moura
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f59a81d744
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refactor(library/data): use new 'obtain' expression
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2015-05-11 09:14:48 -07:00 |
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Jeremy Avigad
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a009cf24e3
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feat(library/data/finset/{basic,card,comb}.lean: add theorems, including card of an injective image
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2015-05-11 09:03:57 -07:00 |
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Jeremy Avigad
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68f7afa053
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feat(library/data/finset/card.lean): begin theory of cardinality
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2015-05-08 19:51:37 +10:00 |
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