nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqyz6v2rsmc8tufcfh95x8vlz8q4gf7pctpucsj3rajrxsav62ny5fv528eua (nprofile…8eua) nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqypdcyqsdr6gtsng6kpg0qs24qucpjjml52t0qr40n2yjsq8pw67jklty0ah (nprofile…y0ah)
I think its the Kolmogorov-Arnold theorem
https://en.wikipedia.org/wiki/Kolmogorov%E2%80%93Arnold_representation_theorem