The Good Data Bible: Set Theory

Martyn Rhisiart Jones

Santiago de Compostela, Galicia, 7th November 2025

Set theory is a branch of mathematics that studies sets, which are simply collections of things.

It was pioneered by Georg Cantor, a German mathematician, in the late 19th century. He introduced concepts such as infinite sets (sets that contain an endless number of elements) and cardinality (a concept that helps define the number of elements in a set). His work, initially controversial, revolutionised mathematics by providing a rigorous framework for understanding infinity despite facing personal and professional challenges.

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