A group $G$ is **solvable** if there is a subnormal series,
\[ \langle e\rangle=H_0 \leq H_1 \leq \cdots \leq H_n =G \]
where each quotient $H_{i+1}/H_i$ is abelian.

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**Knowl status:**

- Review status: beta
- Last edited by John Jones on 2018-07-09 22:54:07

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