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Theorem finset.card_erase_eq_ite

Modification history

2022-02-16 17:16
src/data/finset/card.lean
feat(data/finset/basic): When `insert` is injective and other lemmas (#11982) …
Modified finset.card_erase_eq_iteView on Github →
2021-12-18 18:09
src/data/finset/basic.lean
split(data/finset/*): Split `data.finset.card` and `data.finset.fin` off `data.finset.basic` (#10796) …
Modified finset.card_erase_eq_iteView on Github →
2021-09-20 04:23
src/data/finset/basic.lean
feat(data/{multiset,finset}/basic): card_erase_eq_ite (#9185) …
Added finset.card_erase_eq_iteView on Github →