So I've drawn a continuous function. I really didn't have to pick up my pen as I drew this right over here. And so you can see at least the way this continuous function that I've drawn, it's clear that there's an absolute maximum and absolute minimum point over this interval. The absolute minimum point, well, it seems like we hit it right over here when x is, let's say this is x is c. And this is f of c right over there. And it looks like we hit our absolute maximum point over the interval right over there when x is, let's say that this is x is equal to d. And this right over here is f of d. This right over here is f of d. So another way to say the statement right over here, if f is continuous over the interval, we could say there exists a c and d that are in the interval. So there are members of this set that are in the interval such that, and I'm just using the logical notation here, such that f of c is less than or equal to f of x, which is less than or equal to f of d for all x in the interval. Just like that.