Theorem Sum.getLeft?_eq_some_iff

Modification history

2023-09-12 23:50
Mathlib/Data/Sum/Basic.lean
chore: bump Std for #251 (#7126) …
Deleted Sum.getLeft?_eq_some_iffView on Github →
2023-09-06 13:50
Mathlib/Data/Sum/Basic.lean
feat(Data/Sum/Basic): create direct versions of get(Left|Right)? analogous to Option.get (#6663)
Modified Sum.getLeft?_eq_some_iffView on Github →
2023-08-18 21:51
Mathlib/Data/Sum/Basic.lean
fix(Data/Sum/Basic): Add ? to Sum-get function names. (#6665) …
Added Sum.getLeft?_eq_some_iffView on Github →