Editing Pafnuty Chebyshev (section)

=== Adult years ===
In 1847, Chebyshev promoted his thesis ''[[pro venia legendi]]'' "On integration with the help of logarithms" at [[St Petersburg University]] and thus obtained the right to teach there as a lecturer. At that time some of [[Leonhard Euler]]'s works were rediscovered by P. N. Fuss and were being edited by [[Viktor Bunyakovsky]], who encouraged Chebyshev to study them. This would come to influence Chebyshev's work. In 1848, he submitted his work ''The Theory of Congruences'' for a doctorate, which he defended in May 1849.<ref name=brit/> He was elected an [[Professor|extraordinary professor]] at St Petersburg University in 1850, ordinary professor in 1860 and, after 25 years of lectureship, he became merited professor in 1872. In 1882 he left the university and devoted his life to research.{{citation needed |date= October 2022}}

During his lectureship at the university (1852–1858), Chebyshev also taught practical mechanics at the [[Tsarskoye Selo Lyceum|Alexander Lyceum]] in [[Tsarskoe Selo]] (now Pushkin), a southern suburb of [[St Petersburg]].{{citation needed|date= October 2022}}

His scientific achievements were the reason for his election as junior [[academician]] (adjunkt) in 1856. Later, he became an extraordinary (1856) and in 1858 an ordinary member of the [[Russian Academy of Sciences|Imperial Academy of Sciences]]. In the same year he became an honorary member of [[Moscow University]]. He accepted other honorary appointments and was decorated several times. In 1856, Chebyshev became a member of the scientific committee of the ministry of national education. In 1859, he became an ordinary member of the ordnance department of the academy with the adoption of the headship of the commission for mathematical questions according to ordnance and experiments related to ballistics. The [[French Academy of Sciences|Paris academy]] elected him corresponding member in 1860 and full foreign member in 1874. In 1878, Chebyshev presented a paper on garment cutting, inspired by a lecture by [[Édouard Lucas]], to the French Association for the Advancement of the Sciences.<ref>{{cite journal |last1=Tapia |first1=Victor |year=2025 |title=Chebyshev and Garment Cutting: Debunking Some Myths |url=https://link.springer.com/article/10.1007/s00283-025-10409-x |journal=The Mathematical Intelligencer |volume= |issue= |pages=1–5 |doi=10.1007/s00283-025-10409-x}}</ref>

In 1893, he was elected honorable member of the [[St. Petersburg Mathematical Society]], which had been founded three years earlier.{{citation needed|date= October 2022}}

Chebyshev died in [[St Petersburg]] on 8 December 1894.<ref name=brit/><ref name=McT/>