Theorem isOpen_pi_iff'

Modification history

2025-07-11 18:12
Mathlib/Topology/Constructions.lean
chore(Topology): rename pi family from π to X (#26828) …
Modified isOpen_pi_iff'View on Github →
2023-02-11 13:29
Mathlib/Topology/Constructions.lean
feat: Topology.Constructions. add isOpen_pi_iff (#2110) …
Added isOpen_pi_iff'View on Github →