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Theorem

Commutator Subgroup

Algebra

The commutator subgroup, also called the derived subgroup, of a group in abstract algebra is the subgroup generated by all of the group's commutators. It is important because it is the smallest normal subgroup whose quotient group is abelian: for a normal subgroup N of a group G, the quotient G/N is abelian exactly when N contains the commutator subgroup, so in this sense the commutator subgroup measures how far a group is from being abelian, since the larger it is, the further the group is from commuting. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

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Statement Form
Characterization Theorem 1
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Has Statement Form

Entity-backed identity for the statement-form enum value this theorem already carries, resolved to a mathematics concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The statement-form fact itself stays on the theorem unchanged.

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Source Commutator Subgroup (Wikipedia)
Sources
1. Commutator Subgroup (Wikipedia)
In Branch: Algebra, Lead sentence
Quote, In Branch: Algebra, Lead sentence
In mathematics, more specifically in abstract algebra, the commutator subgroup or derived subgroup of a group is the subgroup gene
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