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Theorem finset.mem_up_shadow_iff_exists_mem_card_add_one

Modification history

2021-12-23 16:33
src/combinatorics/set_family/shadow.lean
feat(combinatorics/set_family/shadow): Upper shadow of a set family (#10956) …
Added finset.mem_up_shadow_iff_exists_mem_card_add_oneView on Github →