# Projective Geometry

by Norman.Galois
Tags: geometry, projective
 P: 43 I'm doing reading course on Projective Geometry. I was presented this question (in the textbook, not homework): In $P_2 R$, let A, B, and C be points on a line L and let A', B', and C' be points on a line L'. Prove there exists points $S_1$, $S_2$ and $S_3$, and lines $l_1$ and $l_2$ such that projection from L to $l_1$ with center $S_1$, ... And it continues. The remainder is not important. What do they mean by center $S_1$? Thank you.
 HW Helper P: 3,225 Isn't it a fixed point in some projection?
P: 43
 Quote by radou Isn't it a fixed point in some projection?
That seems to make more sense. I'll try that out. Thanks!

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