Retrieving "Collinearity" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Plane

   Linked via "non-collinear points"

   The existence of a unique plane is established by several postulates, most notably:
   Any three non-collinear points define exactly one plane.
   If two distinct points lie on a plane, the entire line passing through those two points also lies within that plane.