Mathematician:Bertrand Arthur William Russell

Full name: Bertrand Arthur William Russell, the 3rd Earl Russell.

British philosopher, mathematician and logician.

Best known for his co-authorship with Alfred North Whitehead of Principia Mathematica, published from 1910.

Nationality
Welsh

History

 * Born: 18 May 1872, Ravenscroft, Trelleck, Monmouthshire, Wales
 * Died: 2 Feb 1970, Penrhyndeudraeth, Merioneth, Wales

Theorems

 * Russell's Paradox

Books and Papers

 * 1903: Principles of Mathematics
 * 1908: Mathematical Logic as Based on the Theory of Types (American Journal of Mathematics 30, pp. 222-262), in which the notation $$\left({x}\right)$$ was coined for the universal quantifier.
 * 1910 - 1913: Principia Mathematica (with Alfred North Whitehead)

Wrote a colossal amount of other stuff as well.