#normalsubgroup — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #normalsubgroup, aggregated by home.social.
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Why are normal subgroups called "normal?" Most subgroups are not normal, which seemingly makes the name incorrect.
But in an Abelian group, all subgroups are normal. Abelian groups were the first groups to be studied by white European men, and they are the easiest for humans to work with.
Therefore, normal subgroups are called normal because they are the subgroups which pose the least challenge to the incumbent power structures.
#GroupTheory #NormalSubgroup