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This page was redesigned at the edge.

Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.

// request.cf · coarse context

A page that knows where it met you.

Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.

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Category talk:Projective geometry

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Latest comment: 20 years ago by Wikcerize in topic Old comments

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Would it be appropriate to add Real projective plane to this category? It isn't linked to from the "obvious first point of reference" articles, viz. Real projective space and Real projective line, and so I failed to find it other than by searching. I note that Complex projective line (=Riemann sphere) is not in this category either, but this article is at least linked to from Complex projective space and so was easy to find. --Wikcerize 18:00, 22 March 2006 (UTC)Reply