Mathematical theory of classification (IEKO)

https://www.isko.org/cyclo/mathematical_theory_of_classification.htm

table of elements), in crystallography (the 232 crystallographic groups), etc. Most of these "good" classifications are founded on some mathematical structures (Lie groups, discre
One of the main topics of scientific research, classification, is the operation consisting of distributing objects in classes or groups which are, in general, less numerous than th

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