# Radó's Theorem (Riemann Surfaces)

(Redirected from Riemann Surface is Second Countable)

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## Theorem

A Riemann surface is second countable.

## Proof

This theorem requires a proof.You can help $\mathsf{Pr} \infty \mathsf{fWiki}$ by crafting such a proof.To discuss this page in more detail, feel free to use the talk page.When this work has been completed, you may remove this instance of `{{ProofWanted}}` from the code.If you would welcome a second opinion as to whether your work is correct, add a call to `{{Proofread}}` the page. |

## Source of Name

This entry was named for Tibor Radó.

## Sources

1991: O. Forster: *Lectures on Riemann Surfaces* Chapter $3$: Non-compact Riemann Surfaces: $\S$ $23$: Countable Topology: Theorem $23.3$