( I still don't get the right-angled triangle sides' worked solution in the appendix though.
I literally did a physics degree, somehow.
The step up to (x^2 - 1) > 2n or whatever is fine.
Right after that looks like (x^2 + 1) - (x^2 - 1) > 2 from nowhere.
Like wtf?
Did I just have a stroke.
Where the hell did that come from and go, fucker-eyed crow?)
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