And I'm going to zoom in. I'm going to draw a slightly different function just so we can really focus on what's going on around here, the ranges around c and the ranges around L. So that's x. This right over here is y. Let's say that this is c. And let's just zoom in on our function. So let's say our function is doing something like, let's say it does something like, let's see, I don't want it to be defined at c, at least just for the, it could be. You can always find a limit even where it is defined. But let's say our function looks something like that.