Of course, it is intended to think the tangent lines extended into an infinite plane geometry. Some people talks about a non plane universe (astronomy issue). I guess this theorem isn't valid on a non plane geometry. Am I right? or Wrong? ???
@jotape1960 Every theorem is valid in a specific geometrical environment. For example, a triangle on a sphere may have three right angles, while this is not possible for a triangle in the plane.
Of course, it is intended to think the tangent lines extended into an infinite plane geometry. Some people talks about a non plane universe (astronomy issue). I guess this theorem isn't valid on a non plane geometry. Am I right? or Wrong? ???
jotape1960 2 months ago
@jotape1960 Every theorem is valid in a specific geometrical environment. For example, a triangle on a sphere may have three right angles, while this is not possible for a triangle in the plane.
ElicaTeam 2 months ago