Theorem Filter.HasAntitoneBasis.iInf_principal

Modification history

2025-12-08 05:19
Mathlib/Order/Filter/Bases/Basic.lean
refactor: make `abbrev`s for `IsDirected α (· ≤ ·)` and `IsDirected α (· ≥ ·)` (#32462) …
Modified Filter.HasAntitoneBasis.iInf_principalView on Github →
2023-10-25 14:17
Mathlib/Order/Filter/Bases.lean
feat: generalize some lemmas to directed types (#7852) …
Added Filter.HasAntitoneBasis.iInf_principalView on Github →