Theorem Finset.card_union_eq_card_add_card

Modification history

2024-10-17 15:41
Mathlib/Data/Finset/Card.lean
feat: `#s` as notation for `Finset.card s` (#17646) …
Modified Finset.card_union_eq_card_add_cardView on Github →
2024-02-13 11:24
Mathlib/Data/Finset/Card.lean
feat: Add `Finset.card_union_eq_card_add_card` and golf (#10471)
Added Finset.card_union_eq_card_add_cardView on Github →