# Determining Isomorphisms

## Main Question or Discussion Point

Hey I have a problem in which I need to show that a linear transformation is an isomorphism with another linear transformation. However I don't really understand what an isomorphism is, and how you would even determine it??

I already showed that the Kernal of one transformation was the same as the Range of another transformation is that helps any? I am looking for help on the concept and idea, I wouldn't consider this to be a homework problem??? I'm new here, don't really know the rules and regulations that well.