Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Nazarin ƙungiyoyin abelian da aka ƙayyade yana da cikakkiyar girma, ciki har da mahimman ka'idar ƙungiyoyin abelian da aka ƙayyade; kuma yana nuna wannan yanayin al'amuran, ra'ayoyi da yawa da suka danganci rukuni, kamar cibiyar da commutator, sun bayyana yadda ƙungiyar da aka ba ta ba ta abelian ba.  Tambaya: Wace kalma ɗaya ce ta fi kwatanta yadda ake samar da waɗannan rukunin?
ƙarewa