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Centralizers in symmetric monoidal closed categories
If M is a monoid in a symmetric monoidal closed category V with equalizers and is any morphism in V with codomain M, one can define the centralizer of f as the equalizer of the two multiplication maps induced by f. GeoffreyT2000 (talk) 16:39, 17 May 2015 (UTC)[reply]
Sentence in introduction
In the beginning, it says *The centralizer and normalizer of S are subgroups of G, and can provide insight into the structure of G.* Can this be made more specific? In which way do they provide insight into the structure of G? Is there a particular theorem indicating this? Zaunlen (talk) 15:14, 10 November 2019 (UTC)[reply]
![{\displaystyle M\to [X,M]}](/media/api/rest_v1/media/math/render/svg/80fbcd2a4c35db808f8ae9b389fdf0dcb67c73a7)