Topology 101: How Mathematicians Study Holes
Topology 101 is not about holes. It is about open sets and continuous functions.
What do topologists have for breakfast?
Donuts filled with coffee.
If you'd like a fun, light, video introduction to this topic, this Vsauce video is worth a watch: https://youtu.be/egEraZP9yXQ
Topologist in Court: "Do you promise to tell the truth, the hole truth, and nothing but the truth?" <g>
Rapper Ludacris as Topologist: "I got holes... in different area codes, area codes..." <g>
humans are triple toroids. prove me wrong.
ok, ok, the headline here is more descriptive but the one actually in the article is a good one: The Hole Truth