Theorem IsUltrametricDist.mem_closedBall_iff

Modification history

2025-08-17 08:01
Mathlib/Topology/MetricSpace/Ultra/Basic.lean
chore(Topology/MetricSpace/Ultra): deprecate `mem_ball_iff` and `mem_closedBall_iff` (duplicates) (#28524)
Deleted IsUltrametricDist.mem_closedBall_iffView on Github →
2025-07-04 07:44
Mathlib/Topology/MetricSpace/Ultra/Basic.lean
chore: further whitespace fixes (#26708) …
Modified IsUltrametricDist.mem_closedBall_iffView on Github →
2024-07-18 14:24
Mathlib/Topology/MetricSpace/Ultra/Basic.lean
feat(MetricSpace/Ultra): IsUltrametricDist and basic facts on open/closed sets in such spaces (#14433) …
Added IsUltrametricDist.mem_closedBall_iffView on Github →