Theorem Set.ncard_compl

Modification history

2026-10-02 21:33
Mathlib/Data/Set/Card.lean
feat(Data/Set/Card): cardinality of complement and difference (#43424) …
Modified Set.ncard_complView on Github →
2025-12-15 01:46
Mathlib/Data/Set/Card.lean
feat(Data/Set/Card): ncard of complement of set is Nat.card - ncard of set (#32754)
Added Set.ncard_complView on Github →