Theorem card_derangements_eq_numDerangements

Modification history

2023-08-10 19:52
Mathlib/Combinatorics/Derangements/Finite.lean
chore: banish `Type _` and `Sort _` (#6499) …
Modified card_derangements_eq_numDerangementsView on Github →
2023-03-27 11:56
Mathlib/Combinatorics/Derangements/Finite.lean
feat: port Combinatorics.Derangements.Finite (#3102)
Added card_derangements_eq_numDerangementsView on Github →