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Theorem finset.all_card_le_bUnion_card_iff_exists_injective

Modification history

2021-10-13 21:29
src/combinatorics/hall/basic.lean
feat(combinatorics/hall): generalized Hall's Marriage Theorem (#7825) …
Modified finset.all_card_le_bUnion_card_iff_exists_injectiveView on Github →
2021-02-12 02:51
src/combinatorics/hall.lean
feat(combinatorics/hall): Hall's marriage theorem (#5695) …
Added finset.all_card_le_bUnion_card_iff_exists_injectiveView on Github →