Is Su2 Squiggly Line Equals Z2 Equals Lee Algebra?

The way to think about like first isomorphism theorem in groups. I think is like rank knowledge No, there's not necessarily a thing that is like the rank but more like the image what stuff did not get sent to Something like zero So he mentioned you mentioned something briefly about su two divided by su three gives us or no It just got me thinking like can you do opera? We have some great ways to divide groups together Right. What it what does it mean when you divide because again my very surface level understanding of groups as you mentioned is like things that you do to objects so when you like multiply or divide versus add and subtract can you add and subtract groups Like what are the And