Philosophy 103 - Introduction to Logic: Critical Thinking

Key Figures in the History of Logic

Aristotle (384 - 322 B.C.)

Aristotle's writing on logic has been compiled in the Organon.

Chrysippus (279 - 206 B.C.)

Peter Abelard (1079 - 1142)

William Of Ockham (c. 1285 - 1349)

Click here to see a page from Ockham's Logic.

Wilhelm Gottfried Leibniz (1646-1716)

Click here to see syllogisms by Leibniz.

Augustus de Morgan (1806-1871)

George Boole (1815 - 1864)

Read The Calculus of Logic by George Boole (1848) by clicking here.

John Venn (1834 - 1923)

Alfred North Whitehead (1861 - 1947)

Bertrand Russell (1872 - 1970)

Kurt Gödel (1906 - 1978)

Here is a picture of Gödel and Albert Einstein at Princeton University taken in 1950. They both worked at the prestigious Institute for Advanced Study.

Willard Van Orman Quine (1908-)