Theorem Option.choice_eq_none

Modification history

2023-08-10 19:52
Mathlib/Data/Option/Basic.lean
chore: banish `Type _` and `Sort _` (#6499) …
Modified Option.choice_eq_noneView on Github →
2022-11-07 03:58
Mathlib/Data/Option/Basic.lean
feat: port Data.Option.Basic (#493) …
Added Option.choice_eq_noneView on Github →