Theorem EMetric.mem_nhdsWithin_iff

Modification history

2026-08-11 14:44
Mathlib/Topology/EMetricSpace/Defs.lean
refactor: reorganize Topology/EMetricSpace/Defs to generalise basic results (#40510) …
Modified EMetric.mem_nhdsWithin_iffView on Github →
2026-02-01 00:20
Mathlib/Topology/EMetricSpace/Defs.lean
refactor(EMetricSpace): rename `EMetric.ball` -> `Metric.eball` (#34379) …
Modified EMetric.mem_nhdsWithin_iffView on Github →
2024-08-16 01:08
Mathlib/Topology/EMetricSpace/Basic.lean
chore: splitting up metric spaces files (#15790)
Modified EMetric.mem_nhdsWithin_iffView on Github →
2023-03-03 08:09
Mathlib/Topology/MetricSpace/EMetricSpace.lean
feat: port Topology.MetricSpace.EMetricSpace (#2407)
Added EMetric.mem_nhdsWithin_iffView on Github →