Mathlib Changelog
v4
Changelog
About
Github
Theorem
Set.injOn_iff_invFunOn_image_image_eq_self
Modification history
2023-08-02 02:18
Mathlib/Data/Set/Function.lean
feat(Data.Set.Ncard): enat set cardinality (#5908) …
Added
Set.injOn_iff_invFunOn_image_image_eq_self
View on Github →