- #1

Stephen88

- 61

- 0

## Homework Statement

I'm trying to write a proof ot demonstrate that every finite domain contains

an identity element.

## Homework Equations

## The Attempt at a Solution

If I can think of the operation from the ring as a mapping...like x->yx..where y are just values from the domain and then to consider the possibility that for one y from the domain the following happens x=xy then maybe this will work.But not for addition

How should I think about this problem?