1871 – 1956
Émile Borel was a French mathematician and politician who made foundational contributions to measure theory, probability, and the theory of functions. He is best known for developing Borel sets and Borel measure, which became cornerstones of modern real analysis and probability theory. Beyond mathematics, he served in the French government and wrote influential works on the philosophy of probability and chance.
Developed Borel sets and Borel measure, foundational to measure theory
Pioneered modern probability theory and the concept of measurable functions
Formulated the Heine-Borel theorem in real analysis
Introduced the infinite monkey theorem as a thought experiment in probability
Founded game theory concepts later expanded by von Neumann