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Please don't delete the article. It's useful, just needs some work. Dennui (talk) 09:18, 6 July 2020 (UTC)[reply]
Discoverer
Removed the section as not appropriate in the encyclopedia's article about a surface.
Giuseppe Peano
According to James Dow Allen, Peano's calculus textbook (Calcolo differenziale e integrale) was: "best calculus textbook of his time". and also that Peano: "He was the champion of counter-examples, and found flaws in published proofs of several important theorems."[1]