Theorem Sum.not_isLeft

Modification history

2023-09-12 23:50
Mathlib/Data/Sum/Basic.lean
chore: bump Std for #251 (#7126) …
Deleted Sum.not_isLeftView on Github →
2022-11-24 02:24
Mathlib/Data/Sum/Basic.lean
feat(Data/Sum/Basic): sync with mathlib3 (#702) …
Added Sum.not_isLeftView on Github →