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> There’s also a meta-discussion here. In human speech a common technique is to use X_j (j=1..n) diverse objects that each have k (k=1..m) characteristics Y={Y_jk} where for each j, there exists some k such that you can form a subset Z of Y which has the property that for any y_1, y_2 in Z, |m(y_1)-m(y_2)|<d, for some interesting measure of the characteristic m, and some small number d to illustrate an idea.

> Usually, the idea is that the diversity in X_j resulting in this form of Z points to some commonality among the elements of Z. The idea is usually not that all Y_jk are in an equivalence class but that the subset Z is in a single equivalence class.

Never change, HN. Lol.




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