<a href="https://www.youtube.com/watch?v=dq1-koO70Vs">Video</a> of the lecture.<br>
<a href="https://www.youtube.com/watch?v=YZg6MLQpVZw">Waiting room video</a>: interview with Gromov.<br><br>

Introduced the notion of a <i>Hausdorff</i> topological space. Proved that a compact subset of a Hausdorff space is closed.  This completed the proof of the surjectivity of our Peano space filling curve.