Assertion: abelian group | /r/HasProperty | an area of active research
Facets:
Source sentences:
text: One might add some language to the lead that indicates that abelian groups are one of the first objects studied in undergraduate abstract algebra (easy to cite from intro algebra textbooks TOC and preface), that they form the basis for many other important algebraic objects studied in introductory algebra such as rings and modules (first paragraph of the abelian groups chapter), and are an area of active research (MSC classification).