Talk:Self-intersection

While the definition of "interior" depends on filling method, I think self-intersection doesn't, right? If a polytope's self-intersection property was dependent on filling method, it would have to have an element whose self-intersection itself depends on filling method. But all line segments are non-self-intersecting, which I think seals a proof by induction. Vel (talk) 07:34, 10 March 2023 (UTC)