There is another video that will go a little bit more into the proof direction. But this is more to get an intuition. And so the first claim that I'm going to make is if F is differentiable at X equals C, at X equals C, then F is continuous at X equals C. So I'm saying if we know it's differentiable, if we can find this limit, if we can find this derivative at X equals C, then our function is also continuous at X equals C. It doesn't necessarily mean the other way around. And actually, we'll look at a case where it's not necessarily the case the other way around, that if you're continuous, then you're definitely differentiable. But another way to interpret what I just wrote down is if you are not continuous, then you definitely will not be differentiable. If F not continuous at X equals C, at X equals C, then F is not differentiable. Differentiable at X is equal to C. So let me give a few examples of a non-continuous function.