Mathematician:Charles Lutwidge Dodgson

Better known as Lewis Carroll, Charles Dodgson was a logician, and also an Anglican priest and author.

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 were 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. It is worth mentioning that Lewis Carroll can be considered to be a modernisation of le wis carle, which is approximately old English for the wise man.

Nationality
English

History

 * Born: 27 January 1832
 * Died: 14 January 1898

Theorems and Definitions

 * Lewis Carroll Identity
 * Dodgson Condensation

Books and Papers

 * 1865: Alice's Adventures in Wonderland
 * 1871: Through the Looking-Glass, and What Alice Found There
 * 1874: The Hunting of the Snark (An Agony in 8 Fits)
 * 1879: Euclid and his Modern Rivals
 * 1889: Sylvie and Bruno
 * 1893: Sylvie and Bruno Concluded
 * 1896: Symbolic Logic Part I
 * Posthumous: Symbolic Logic Part II

Both of these last two are available repackaged as, edited by William Warren Bartley, III.