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Jul 24, 2023 at 15:58 comment added Najib Idrissi @HenrikRüping Why couldn't a maximal subgroup be isomorphic to $S_{\mathbb{N}}$? In $\mathbb{Z}$, all the maximal subgroups ($p\mathbb{Z}$ for $p$ prime) are isomorphic to $\mathbb{Z}$, aren't they?
Jul 24, 2023 at 14:25 history edited Fedor Petrov CC BY-SA 4.0
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Jul 24, 2023 at 14:08 comment added Martin Seysen According to en.wikipedia.org/wiki/Maximal_subgroup "a maximal subgroup H of a group G is a proper subgroup, such that ..."
Jul 24, 2023 at 13:57 comment added HenrikRüping But then for $S_\mathbb{N}$ this would only be the whole group. Any other subgroup cannot be maximal in the poset of subgroups isomorphic to $S_\mathbb{N}$. Maybe we only have to look at proper subgroups ?
Jul 24, 2023 at 13:42 comment added Martin Seysen Can the 2nd sentence in the question be formulated as follows: I'd like to describe all maximal subgroups of $S_{\mathbb{N}}$ (and also of $A_{\mathbb{N}}$) that are isomorphic to $S_{\mathbb{N}}$ .
Jul 24, 2023 at 13:33 answer added Sean Eberhard timeline score: 9
Jul 24, 2023 at 13:33 history edited Sean Eberhard CC BY-SA 4.0
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Jul 24, 2023 at 12:30 comment added Wojowu What do you mean with "of type $S_{\Bbb N}$"?
Jul 24, 2023 at 11:26 history asked Анатолий Вершик CC BY-SA 4.0