EntityQ318737· pop 19· linked from 257 articlesabelian categorySign in to savepreadditive category with a zero object and all binary biproducts, kernels and cokernels in which all monomorphisms and epimorphisms are normalConnectionscategoryEntitystrict 2-categoryEntitymorphismEntityexact sequenceEntityinitial and terminal objectsEntitylimitEntityuniversal propertyEntitysubcategoryEntitysubobjectEntitycomplete categoryEntityhigher category theoryEntitypreadditive categoryEntitymathematicsEntityInternational Standard Book NumberEntityaxiomEntitydigital object identifierEntityInternational Standard Serial NumberEntitygroupEntityvector spaceEntityOCLC, Inc.EntityCategoriesAdditive categoriesHomological algebraNiels Henrik Abel