Ernst Zermelo
German mathematician
Died when: 81 years 298 days (981 months)Star Sign: Leo

Ernst Friedrich Ferdinand Zermelo (/z??r'm?lo?/, German: [ts???'me?lo]; 27 July 1871 – 21 May 1953) was a German logician and mathematician, whose work has major implications for the foundations of mathematics.
He is known for his role in developing Zermelo–Fraenkel axiomatic set theory and his proof of the well-ordering theorem.
Furthermore, his 1929 work on ranking chess players is the first description of a model for pairwise comparison that continues to have a profound impact on various applied fields utilizing this method.
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