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A subnormal series of a group $G$ is a chain of subgroups, $\langle e\rangle = H_0 \leq H_i \leq \cdots \leq H_{n} =G$ where each $H_i$ is a normal subgroup of $H_{i+1}$.

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• Review status: reviewed
• Last edited by Kiran S. Kedlaya on 2019-04-20 16:16:24
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