...have you ever heard of engineering induction? If it works 3 times, it will always work.
It's still must stronger than computer science induction: if it works once, it will work all the time. If it doesn't work all the time, it's the users fault.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."