There are a bunch of Kolmogorov essays that might be relevant, judging by their titles. https://www.turpion.org/php/reference.phtml?journal_id=rm&paper_id=1991

There are a bunch of Kolmogorov essays that might be relevant, judging by their titles. https://www.turpion.org/php/reference.phtml?journal_id=rm&paper_id=1991&volume=43&issue=6&type=xrf https://www.turpion.org/php/reference.phtml?journal_id=rm&pa... Perhaps "On the school definition of identity", Matematika v shkole 1966 * * * Maybe a Russian speaker wants to go search? There doesn’t seem to be an English translation of most of Kolmogorov’s essays online. https://www.google.com/search?tbm=bks&q=Математика+в+школе+Колмого́ров+1966 https://www.google.com/search?tbm=bks&q=Математика+в+школе+К...