File:First known usage of the infinity symbol.jpg

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English: First known usage of the infinity symbol
Date
Source Wallis, J. (1655) (in Esperanto) De sectionibus conicis nova methodo expositis tractatus
Author John Wallis

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Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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current00:33, 11 March 2022Thumbnail for version as of 00:33, 11 March 20221,219 × 1,092 (1.1 MB)Onceinawhile (talk | contribs)Uploaded a work by {{w| John Wallis}} from {{cite book | last=Wallis | first=J. | title=De sectionibus conicis nova methodo expositis tractatus | year=1655 | url=https://books.google.com/books?id=03M_AAAAcAAJ | language=eo}} with UploadWizard

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