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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

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Source Feit-Thompson Theorem (Wikipedia)
Source Feit-Thompson Theorem (Wikipedia)
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
  • Proved By: Walter Feit, Lead
    It was proved in the early 1960s by Walter Feit and John Griggs Thompson.
  • Proved By: John G. Thompson, Lead
    It was proved in the early 1960s by Walter Feit and John Griggs Thompson.
  • In Group: Group Theory, Lead section
    theorem, or odd order theorem, states that every finite group of odd order is solvable. It was proved in the
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