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Hyperbolic Plane

In the hyperbolic plane $\Bbb{H}^2$, a pair of Lines can be Parallel (diverging from one another in one direction and intersecting at an Ideal Point at infinity in the other), can intersect, or can be Hyperparallel (diverge from each other in both directions).

See also Euclidean Plane, Rigid Motion

© 1996-9 Eric W. Weisstein