Human Tech Tree
Researched1902-1933 · Machine Age (1900 – 1945)

Formal Sciences & Matter / Mathematics

Measure-Theoretic Probability

Lebesgue's measure and integral (1902) and Kolmogorov's axioms (1933) put probability on a rigorous footing, the base of modern statistics.

Open in the interactive tree →

Henri Lebesgue's 1902 thesis extended length and the integral to a large class of sets and functions. In 1933 Andrey Kolmogorov defined a probability space as a set with a measure of total size 1 and three axioms (non-negativity, unit total, countable additivity).

Prerequisites

Unlocks

  • Information Theory1948Entropy is defined on probability distributions, later put on measure-theoretic footing
  • Monte Carlo Methods1949Monte Carlo estimates rest on laws of large numbers, stated rigorously in Kolmogorov's framework

Sources

More in Mathematics · Machine Age

All 63 points in Mathematics →

Open in the interactive tree →