Theorem Option.eq_none_iff_forall_not_mem

Modification history

2022-09-15 13:39
Mathlib/Data/Option/Basic.lean
chore: bump to 2022-09-15 (#414)
Deleted Option.eq_none_iff_forall_not_memView on Github →
2021-12-18 19:21
Mathlib/Data/Option/Basic.lean
feat: porting Data.List.Defs, Init.Data.List.Basic (#137) …
Added Option.eq_none_iff_forall_not_memView on Github →