It's undefined. Let me draw it a little bit different. So it is undefined when x is equal to c. So this is the point where there is a hole. It is undefined when x is equal to c. And it even has a little kink in it just like that. And what we want to do is prove that the limit of f of x, and let me make it clear, this is the graph of y is equal to f of x. We want to get an idea for what this definition is saying if we're claiming that the limit of f of x as x approaches c is L. So conceptually, we get the gist already. We already get the gist that this right over here is L. But what is this definition saying?