You could've invented semi-direct products: Exact sequences

In this video we explore the concept of short exact sequences of groups as a means to describe the idea of "building" one group from another. This is a first step towards understanding the definition of semi-direct products of groups. Email me at: ktheorytutoring@gmail.com Deconstructing groups (0:00) Chain complexes of groups (13:06) A short exact sequence (19:52)