# Clopen Set　`def.clopen`
English entry · root `../`
[in graph](../#n=def.clopen)　·　[Chinese page (authoritative)](./def.clopen.md)

> English: **name only** · auto-derived from the source data; the Chinese page is authoritative.

layer 6 · definition · cluster 拓扑空间 (`topology.general`) · Topology
names: `clopen` (short) · `Clopen Set` (full)

## Statement and proof
Chinese only — see the Chinese page `nodes/def.clopen.md` and `proofs/`.


Cite: `def.clopen` (content v0.9.0) · terms: [LICENSE.txt](../LICENSE.txt)