Theorem Option.bnot_isSome

Modification history

2025-05-02 23:00
Mathlib/Data/Option/Basic.lean
chore: bump toolchain to v4.20.0-rc2 (#24561)
Deleted Option.bnot_isSomeView on Github →
2024-06-06 21:05
Mathlib/Data/Option/Basic.lean
refactor: `reduceOption_length_le` (#11671) …
Added Option.bnot_isSomeView on Github →