Cantor's Theory

Cantor's Theory, developed by mathematician Georg Cantor, explores the concept of infinity and sizes of infinite sets. He showed that some infinities are larger than others; for example, the set of all real numbers between 0 and 1 is “uncountably infinite” and bigger than the countable infinity of natural numbers (1, 2, 3, ...). Cantor introduced the idea of different "cardinalities" to measure the size of sets, revolutionizing our understanding of infinity and laying foundations for modern mathematics and set theory.