This topic is linked to null - null.
Y by
Consider and such that we clearly see that,
Recall thus we can clearly see that as they are each other inverse that thus let,
Thus we see,
In other words and are elements in the group of units of although since it is also the group of units of therefor
Recall thus we can clearly see that as they are each other inverse that thus let,
Thus we see,
In other words and are elements in the group of units of although since it is also the group of units of therefor