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# Ivan Ivanovich Zhegalkin

Ivan Ivanovich Zhegalkin (Russian Иван Иванович Жегалкин; alternative romanizations: Žegalkin, Gégalkine) (1869 - 1947) was a Russian mathematician. He is best known for his formulation of Boolean algebra as the theory of the ring of integers mod 2, via what are now called Zhegalkin polynomials.

Zhegalkin was professor of mathematics at Moscow State University. He helped found the thriving mathematical logic group there, which became the Department of Mathematical Logic established by Sofia Janovskaja in 1959. Reminiscing on his student days, Nikolai Luzin recalls Zhegalkin as the only professor he was not afraid of.

**References**

* Volkov, V.A. (1997). "Two letters of N.N. Luzin to M.Ya. Vygodskiǐ". Historico-Mathematical Investigation 2: 133-152.

* Vladimirov, D.A. (1969). булевы алгебры (Boolean algebras, in Russian, German translation Boolesche Algebren 1974). Nauka (German translation Akademie-Verlag).

* Zhegalkin, Ivan Ivanovich (1927). "On the Technique of Calculating Propositions in Symbolic Logic". Matematicheskii Sbornik 43: 9-28.

**See** also

* Zhegalkin polynomial

* Moscow State University

* Boolean algebra (introduction)

* Boolean logic

* Boolean algebras

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