Well you’re wrong. A440 is the Nazi Reich frequency, and in response, the globohomo Jewish elites developed A432 to vibrationally enslave the goyim. It’s obvious that we must revert to Renaissance tuning and just temperament A415 to undo the cancer caused by modernity
Well if we’re going to be talking about logical fallacies, I feel like the string of arguments that you made there is a category error. Infinity isn’t exactly a number, it’s more of a philosophical concept than anything else. I would argue that trying to subtract Infinity from Infinity is illogical and kind of silly, but it wouldn’t be a reductio ad absurdum as you put it, but instead a category error.
An absurdist argument might be more like, if I have one cat I can trade it for one dog. Therefore infinite cats can be traded for infinite dogs. This is obviously absurd, because infinite cats don’t exist, unfortunately.