Computer-assisted proof is a way to use a computer to help us check if some math is correct. It's like when you ask someone to check your homework, but the computer is really good at it, it never gets tired, and it can check really big and complicated problems that are hard for humans to check.
Think of it like a computer game where we give the computer rules, and it uses those rules to solve problems. We tell the computer if it's allowed to use certain math rules, and then it uses those rules to show us how one math problem leads to another. It's kind of like a map of math. The computer can follow the steps and check if there are any mistakes. If there are mistakes, the computer will tell us where they are and how to fix them.
Computer-assisted proof is very helpful because it can check really complicated math problems that would be too hard for humans to check by themselves. It's like having a smart friend who is really good at math, but you don't have to ask them every time you have a problem.