5.02 Fundamental group of a CW complex
Channel: Jonathan Evans
Date: 2018-09-13

We use Van Kampen's theorem to give a presentation for the fundamental group of any CW complex in terms of its 1-cells and 2-cells. For notes, see here: http://www.homepages.ucl.ac.uk/~ucahjde/tg/html/vkt02.html