I'm looking at 29 pages. When he does the does the calculation of the fundmental group of circle.
Was wondering is there a easier way using covering spaces to prove this. As I'm trying to find a quick and easy way to do this. But, I can't seem to find one. I found an easy way to show that sphere and higher spheres are zero. But, that was using van kampen theorem and it won't work for the circle.
So was wondering what is a neat way to prove this.