Affinity of the second of parabolas of rays with two constant rays and a system of rays on a plane
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Abstract
Systems of points and rays on a plane, as is known, are not related. But the system of points is related to the seconds of conoprimes of points and rays that have three constant elements, and of those having two constant elements, only conoprimes of points (tetraprims) are related. We will now show that the seconds of parabolas of rays with two constant rays are related to a system of rays on a plane.
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