We already get the gist that this right over here is L. But what is this definition saying? What's saying that you can get f of x as close to L as you want. So if you tell someone, I want to get f of x within a certain range of L, then if this limit is actually true, if the limit of f of x as x approaches c really is equal to L, then they should be able to find a range around c that as long as x is around that range, your f of x is going to be in the range that you want. So let me actually go through that exercise. It really is a little bit like a game. So someone comes up to you and says, well, OK, I don't necessarily believe that you're claiming that the limit of f of x as x approaches c is equal to L. I'm not really sure if that's the case. But I agree with this definition.