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Theorem metric.is_open_singleton_iff

Modification history

2021-08-21 18:46
src/topology/metric_space/basic.lean
feat(topology/metric_space): metrizable spaces (#8759) …
Modified metric.is_open_singleton_iffView on Github →
2021-03-17 03:47
src/topology/metric_space/basic.lean
refactor(topology/metric_space/basic): add pseudo_metric (#6716) …
Modified metric.is_open_singleton_iffView on Github →
2020-12-11 01:46
src/topology/metric_space/basic.lean
feat(topology/separation): finite t1 spaces are discrete (#5298) …
Added metric.is_open_singleton_iffView on Github →