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Theorem

Feit-Thompson Theorem

Algebra

Every finite group of odd order is solvable. Proved by Walter Feit and John Thompson in a single argument that ran to over 250 journal pages, it was a critical early step toward the eventual classification of finite simple groups.

Facts
Statement
Every finite group whose order is an odd number is solvable, meaning it can be built up from abelian groups by a finite chain of extensions. 1
Proof Year
1963 1
Classification
Statement Form
Characterization Theorem 1
Connections

Associated With

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.

In Branch

Sources
1. Feit-Thompson Theorem (Wikipedia)
Wikimedia Foundation
  • Lead section, opening theorem statement
    every finite group of odd order is solvable
  • References section, 1963 Pacific Journal of Mathematics citation
    Feit and Thompson (1963), "Solvability of groups of odd order", Pacific Journal of Mathematics, 13: 775-1029
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