<a href="https://www.youtube.com/watch?v=RBKYTrx-4Zg">Video</a> of the lecture.<br>
<a href="https://www.youtube.com/watch?v=x-DgL49CFlM">Waiting room video</a>: Numberphile on space-filling curves.<br><br>

Introduced the notion of <i>compactness</i> and proved that it is a topological property. The real line <b>R</b> is not compact. The second online homework shows that the interval [0,1] is compact. Hence this interval is not homeomorphic to the <b>R</R>