Sylow-permutable implies subnormal in finite

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Revision as of 23:20, 31 October 2008 by Vipul (talk | contribs) (New page: {{subgroup property implication in| group property = finite group| stronger = Sylow-permutable subgroup| weaker = subnormal subgroup}} ==Statement== In a finite group, any [[Sylow-pe...)
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This article gives the statement and possibly, proof, of an implication relation between two subgroup properties, when the big group is a finite group. That is, it states that in a Finite group (?), every subgroup satisfying the first subgroup property (i.e., Sylow-permutable subgroup (?)) must also satisfy the second subgroup property (i.e., Subnormal subgroup (?)). In other words, every Sylow-permutable subgroup of finite group is a subnormal subgroup of finite group.
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Statement

In a finite group, any Sylow-permutable subgroup (i.e., any subgroup that permutes with all Sylow subgroups) is subnormal.

Related facts

Facts used

  1. Sylow-permutability satisfies intermediate subgroup condition
  2. Maximal Sylow-permutable implies normal