Do what causes you the least harm. I am not that mad about it. But I would like to get my 100 points. I do not understand why after I was marked wrong the rating went down? It should have gone up. Arpad Elo is an imbecile.
But this is not a continuous function. It says a sequence limit, implying a discrete function. I am not trying to be a nit, the experts agree with your answer. I am just trying to see if I can understand the question like you do. Thanks.