# Mathematician:Lewis

## Disambiguation

This page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

Lewis may refer to:

##### Lewis Carroll $($$\text {1832} – \text {1898}$$)$

English mathematician and logician, Anglican priest and author of children's books.

He is best known nowadays for his Alice's Adventures in Wonderland and Through the Looking-Glass, and What Alice Found There, not (on the surface) works of mathematics.

His actual mathematical works tended to be idiosyncratic, often focused on making mathematical concepts (in particular, logical syllogisms) accessible to children.

One of the first to treat logical elements with symbols, thus contributing to the birth of symbolic logic.
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##### Clarence Irving Lewis $($$\text {1883} – \text {1964}$$)$

American philosopher logician recognized as being a leading authority on symbolic logic.

An early proponent of the work of Charles Sanders Peirce, and also referenced the logical works of Gottfried Wilhelm von Leibniz.

Did considerable work to analyze the semantic meaning of the conditional statement.

Analyzed modal logic.
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##### Lewis Richard Benjamin Elton $($$\text {1923} – \text {2018}$$)$

German-born British physicist and researcher into education, specialising in higher education.
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##### Donald John Lewis $($$\text {1926} – \text {2015}$$)$

American mathematician specializing in number theory.
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##### John Lewis Selfridge $($$\text {1927} – \text {2010}$$)$

American mathematician who contributed to the fields of analytic number theory, computational number theory and combinatorics.

Proved in $1962$ that $78 \ 557$ is a Sierpiński number of the second kind.

Conjectured (with Wacław Franciszek Sierpiński) that it is also the smallest. This still has not been proven (see Sierpiński Problem).
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##### Harry Lewis Nelson $($$\text {b. 1932}$$)$

American mathematician and computer programmer.

Member of the team that won the World Computer Chess Championship in $1983$ and $1986$.

Co-discoverer with David Slowinski of the $27$th Mersenne prime $2^{44 \, 497} − 1$ in $1979$.

Editor of the Journal of Recreational Mathematics for five years.
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##### Ronald Lewis Graham $($$\text {1935} – \text {2020}$$)$

American mathematician famous for his work in the field of Ramsey theory.

Notable for introducing Graham's number, the largest number ever yet encountered in mathematics.

Popularized the concept of the Erdős number.

Husband of Fan Chung Graham, friend and colleague of Paul Erdős.
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