File:Lobatchevski - La Théorie des parallèles, 1980 - Fig-1-07.png

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Français : Figures d'illustration de la Théorie des parallèles
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This file comes from Gallica Digital Library and is available under the digital ID bpt6k3942g

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Author
Nikolai Ivanovich Lobachevsky  (1792–1856) wikidata:Q129199 s:en:Author:Nikolai Lobachevsky q:en:Nikolai Ivanovich Lobachevsky
 
Nikolai Ivanovich Lobachevsky
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Nikolai Lobachevsky
Description Russian mathematician, professor and university teacher
Date of birth/death 20 November 1792 (in Julian calendar) Edit this at Wikidata 12 February 1856 (in Julian calendar) Edit this at Wikidata
Location of birth/death Nizhny Novgorod Edit this at Wikidata Kazan Edit this at Wikidata
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creator QS:P170,Q129199

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Public domain

The author died in 1856, so 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 100 years or fewer.

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