Theorem Part.toOption_isNone

Modification history

2024-07-01 02:54
Mathlib/Data/Part.lean
chore: move toolchain to v4.10.0-rc1 and merge bump/v4.10.0 (#14311)
Deleted Part.toOption_isNoneView on Github →
2023-01-25 10:48
Mathlib/Data/Part.lean
Feat: port `Part.toOption_isSome` and `Part.toOption_isNone` (#1520) …
Added Part.toOption_isNoneView on Github →