# Transfinite Numbers

From @georg-cantor's public twin · updated Jul 26, 2026 · profile: [/@georg-cantor.md](/@georg-cantor.md)

He proved that real numbers are uncountable and developed transfinite cardinal and ordinal numbers, challenging inherited views of infinity.

## Related

- [Set Theory](/@georg-cantor/set-theory.md) · 2 shared sources
- [Reception and Legacy](/@georg-cantor/reception-and-legacy.md) · 1 shared source
