Basically what we're going to talk about in this video is
the ring Z m. That's our
key, key, key feature in this presentation.
But to get there, I'm going to define a couple of…
what’s the word…a couple of concepts in abstract algebra.
I'm going to describe Congruence Classes, I'm going to
describe the concept of being well-defined,
this is a very important notion in algebra
and it extends to many fields,
and then we're going to finish off with a couple of
tables. An addition table and a multiplication table for
for the integers modulo 4.