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Parallel lines are important in discussions of Euclidian [[geometry]].  A [[postulate]] of Euclidean geometry is that given a line and a point, there is exactly one line through the point parallel to the original line.  Non-Euclidian geometries allow for infinite or no parallel numbers of lines.

Parallel lines are important in discussions of Euclidian [[geometry]].  A [[postulate]] of Euclidean geometry is that given a line and a point, there is exactly one line through the point parallel to the original line.  Non-Euclidian geometries allow for infinite or no parallel numbers of lines.

[[Category:geometry]

[[Category:geometry]]