I'm looking for a little help with an Epsilon Delta proof. I'm taking a deferred exam 6 months after the course ended, so I really need help here.
The Question: Let f be a function defined on a set S in R^n and suppose Q is a limit point of S. If , prove from first principles that
My Attempt By definition, we know that . Suppose
This is really all I have and understand and is probably wrong. I apologize in advance that I may have many questions in the following days as I'm slowly realize I barely understand anything from this course any more and I am truly trying but this is making no sense to me and I have no reference (Textbook was rented).
Any help would be greatly Appreciated.