It looks that way. What we're going to do is use the epsilon delta definition to actually prove it. The way that most of these proofs typically go is we define delta in the abstract. We essentially try to come up with a way that given any epsilon, we can always come up with a delta. Another way is we're going to try to describe our delta as a function of epsilon, not to confuse you too much. Maybe I shouldn't use f again. Delta equals function of epsilon that is defined for any positive epsilon.