Ah, never had anything to do with LaTeX.
Now, TeX, that's one of my favorite things!
Ah, just today used TeX on a paper in anomaly detection that exploits the Hahn decomposition!
In the paper of the OP, was there a place where it claimed it had a subset of a set when it was really an element of the set. Don't be careful about the difference between
elements and sets and can get back to the Russell paradox.
Also, for some positive integer n, e.g., n = 3, we can have an n-tuple, e.g.,
(A,B,C)
but, guys, so far we've said nothing about the components of the n-tuple being numbers, e.g., for error correcting codes, elements of a finite field, multiplying an n-tuple by a number, adding n-tuples, taking inner products, so, so far, with just some n-tuples we a bit short of a vector space or vectors.