Theorem Option.eq_none_iff_forall_some_ne

Modification history

2025-05-02 23:00
Mathlib/Data/Option/Basic.lean
chore: bump toolchain to v4.20.0-rc2 (#24561)
Deleted Option.eq_none_iff_forall_some_neView on Github →
2025-03-20 00:11
Mathlib/Data/Option/Basic.lean
feat(ENat): `(∀ a : ℕ, a ≤ m → a ≤ n) ↔ m ≤ n` (#23101) …
Added Option.eq_none_iff_forall_some_neView on Github →