Projective space
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In mathematics, the concept of a projective space originated from the visual effect of perspective, where parallel lines seem to meet at infinity. A projective space may thus be viewed as the extensio
In graphical perspective, parallel (horizontal) lines in the plane intersect at a vanishing point (on the horizon).
Incidence geometry
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In mathematics, incidence geometry is the study of incidence structures. A geometric structure such as the Euclidean plane is a complicated object that involves concepts such as length, angles, contin
Simplest non-trivial linear space