Cantor

Cantor was a mathematician who revolutionized our understanding of infinity by studying infinite sets. He introduced the concept that some infinities are larger than others, as seen with the set of all natural numbers (countably infinite) and the set of real numbers between 0 and 1 (uncountably infinite). Using a method called the diagonal argument, he proved that the real numbers cannot be listed entirely, indicating their infinity is "bigger." His work challenged intuitive ideas about size and continuity, shaping modern set theory and deepening our grasp of infinite collections.