Theorem Finset.card_biUnion

Modification history

2025-03-12 13:47
Mathlib/Algebra/BigOperators/Group/Finset/Basic.lean
feat: density of a union of finsets (#22629) …
Modified Finset.card_biUnionView on Github →
2023-05-14 07:05
Mathlib/Algebra/BigOperators/Basic.lean
chore: Rename to `sSup`/`iSup` (#3938) …
Added Finset.card_biUnionView on Github →