Theorem Subtype.preimage_emetricBall

Modification history

2026-02-01 00:20

Mathlib/Topology/EMetricSpace/Defs.lean

refactor(EMetricSpace): rename `EMetric.ball` -> `Metric.eball` (#34379) …

Deleted Subtype.preimage_emetricBall View on Github →

2025-11-24 15:10

Mathlib/Topology/EMetricSpace/Defs.lean

feat(MetricSpace): images and preimages of balls in subtypes (#31957)

Added Subtype.preimage_emetricBall View on Github →