Theorem EMetric.isOpen_ball

Modification history

2026-02-01 00:20
Mathlib/Topology/EMetricSpace/Defs.lean
refactor(EMetricSpace): rename `EMetric.ball` -> `Metric.eball` (#34379) …
Deleted EMetric.isOpen_ballView on Github →
2025-03-19 19:17
Mathlib/Topology/EMetricSpace/Defs.lean
chore: make `isOpen_ball` simp (#23109) …
Modified EMetric.isOpen_ballView on Github →
2024-08-16 01:08
Mathlib/Topology/EMetricSpace/Basic.lean
chore: splitting up metric spaces files (#15790)
Modified EMetric.isOpen_ballView on Github →
2023-03-03 08:09
Mathlib/Topology/MetricSpace/EMetricSpace.lean
feat: port Topology.MetricSpace.EMetricSpace (#2407)
Added EMetric.isOpen_ballView on Github →