Extended Real Number Space is Compact

Theorem

The extended real number space is compact.

Proof

This theorem requires a proof. In particular: opens at each infinity, and a closed, bounded area remains 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.