Theorem Finset.sdiff_singleton_not_mem_eq_self

Modification history

2023-04-24 08:51
Mathlib/Data/Finset/Basic.lean
feat: `insert` and `erase` lemmas (#3569) …
Deleted Finset.sdiff_singleton_not_mem_eq_selfView on Github →
2023-01-16 08:13
Mathlib/Data/Finset/Basic.lean
feat: port Data.Finset.Basic (#1555)
Added Finset.sdiff_singleton_not_mem_eq_selfView on Github →