Theorem isOpen_iff_open_ball_subset

Modification history

2024-11-19 11:04
Mathlib/Topology/UniformSpace/Basic.lean
chore: some renames `iff_open` -> `iff_isOpen` (#19209) …
Deleted isOpen_iff_open_ball_subsetView on Github →
2023-02-02 05:07
Mathlib/Topology/UniformSpace/Basic.lean
feat: port Topology.UniformSpace.Basic (#1993)
Added isOpen_iff_open_ball_subsetView on Github →