## About

Late nineteenth and early twentieth-century mathematician remembered as the inventor of set theory. He worked on problems related to ordinal, cardinal, and transfinite numbers.

## Before Fame

He attended the University of Zurich, the University of Berlin, and the University of Göttingen.

## Trivia

He taught for many decades at the University of Halle.

## Family Life

He was born in Russia to a German family of musicians. His great-uncle, Joseph Böhm, was a renowned violinist, and his grandfather, Franz Böhm, played with the Russian Imperial Orchestra.

## Associated With

He and American mathematician Paul Cohen both contributed important ideas to set theory.