Theorem Finset.card_inv

Modification history

2025-03-29 18:40
Mathlib/Algebra/Group/Pointwise/Finset/Basic.lean
chore(*): use `#s` notation here and there (#23438)
Modified Finset.card_invView on Github →
2023-12-27 20:59
Mathlib/Data/Finset/Pointwise.lean
feat: `(a • s)⁻¹ = s⁻¹ • a⁻¹` (#9199) …
Modified Finset.card_invView on Github →
2023-02-01 10:16
Mathlib/Data/Finset/Pointwise.lean
feat: Port/Data.Finset.Pointwise (#1911) …
Added Finset.card_invView on Github →