Okay kiddo, let me explain Lauricella's theorem in a way you can understand.
Imagine you have a cake and you want to share it with your friends. You have four friends and you want to know how to divide the cake equally so that everyone gets a fair share.
Lauricella's theorem is like a recipe that tells you how to divide the cake into equal parts. It's a trick that helps you figure out how to divide things that you can't easily divide by just counting.
Now, imagine if instead of a cake, you had a complicated math problem. You might not be able to divide it equally just by counting. That's where Lauricella's theorem comes in. It helps you find a way to divide the math problem into equal parts so that you can solve it more easily.
So, in summary, Lauricella's theorem is like a recipe for dividing complicated math problems into equal parts so that they can be solved more easily, like dividing a cake among friends.