In mathematics, real projective space, or RPn, is the topological space of lines through 0 in Rn+1. It is a compact, smooth manifold of dimension n, and a special case of a Grassmannian.
Read more about Real Projective Space: Geometry of Real Projective Spaces, Infinite Real Projective Space
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“When I read of the vain discussions of the present day about the Virgin Birth and other old dogmas which belong to the past, I feel how great the need is still of a real interest in the religion which builds up character, teaches brotherly love, and opens up to the seeker such a world of usefulness and the beauty of holiness.”
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