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Theorem finset.all_card_le_bUnion_card_iff_exists_injective'

Modification history

2021-10-13 21:29
src/combinatorics/hall/finite.lean
feat(combinatorics/hall): generalized Hall's Marriage Theorem (#7825) …
Added finset.all_card_le_bUnion_card_iff_exists_injective'View on Github →