# normal subgroup　`def.normal-subgroup`
English entry · root `../`
[in graph](../#n=def.normal-subgroup)　·　[Chinese page (authoritative)](./def.normal-subgroup.md)

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

layer 7 · definition · cluster 代数结构 (`algebra.structures`) · Abstract Algebra

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


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