Correct. Equivalently, an = e.
I think that's the point. Learning the theory is much easier when you are familiar with a variety of more concrete examples. It also allows for more interesting and varied problems. If you don't "flesh" out the theory, there's little for a student to "grab" on to, at least that's what I've found.mathwonk said:of course examples flesh out the theory.
at least half your list is examples.