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Typed telegram in French regarding Cantor's address before the Third International Congress of Mathematicians, one page, 9 x 5.25, postmarked August 1904. In part (translated): "Members of the 3rd International Congress gathered in the Stadthalle of Heidelberg have warmly applauded the speech of Georg Cantor recalling your initiative and your company to the cause of International Congresses = Georg Cantor, Fehr, Jahnke, Jolles, Vassilieff." In very good to fine condition, with light staining to the side edges.
George Cantor (1845-1918) was a German mathematician who created set theory, which has become a fundamental theory in mathematics. Cantor established the importance of one-to-one correspondence between the members of two sets, defined infinite and well-ordered sets, and proved that the real numbers are more numerous than the natural numbers. Cantor played a prominent role in establishing the International Congress of Mathematicians, a body that continues to meet once every four years. He is credited, along with Felix Klein, with putting forward the idea of such a congress in the 1890s.
![Lot #200 [Georg Cantor]: Telegram on Cantor's Speech Before the International Congress of Mathematicians - Image 1](https://d2skn5554g4boz.cloudfront.net/2020-website/705/3495185/large/3495185_1.jpg)