Theorem Sum.getLeft_eq_none_iff

Modification history

2023-08-18 21:51
Mathlib/Data/Sum/Basic.lean
fix(Data/Sum/Basic): Add ? to Sum-get function names. (#6665) …
Deleted Sum.getLeft_eq_none_iffView on Github →
2023-01-25 12:38
Mathlib/Data/Sum/Basic.lean
Feat: add lemmas about `Sum` (#1583) …
Modified Sum.getLeft_eq_none_iffView on Github →
2022-10-25 00:37
Mathlib/Data/Sum/Basic.lean
feat: port Data.Sum.Basic (#497) …
Added Sum.getLeft_eq_none_iffView on Github →