20 ms·
Neglect considerations of homotopy at your peril!
by Y_Y 2y ago
Neglect considerations of homotopy at your peril!
- gus_massa 2y agoYep. If you can go from A to C by B or B' and all the place is a nice grass field they are probably equivalent. But if between B anb B' there is an active vocano, most people would call the paths different.