File:Pentagrams.png

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Pentagrams.png ‎(581 × 411 pixels, file size: 8 KB, MIME type: image/png)

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English: Ten lines and ten points, so arranged that each of the ten lines passes through three of the ten points and each of the ten points lies on three of the ten lines, but nonetheless this w:projective configuration is not incidence-isomorphic to the w:Desargues configuration. This was pseudonymously described in a posting to a yahoogroups forum; I don't know the name of the poster.
Source Michael_Hardy (talk) (Uploads)
Author Michael_Hardy (talk) (Uploads)
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Date/TimeThumbnailDimensionsUserComment
current23:14, 8 April 2008Thumbnail for version as of 23:14, 8 April 2008581 × 411 (8 KB)Michael Hardy (talk | contribs)Ten lines and ten points, so arranged that each of the ten lines passes through three of the ten points and each of the ten points lies on three of the ten lines, but nonetheless this projective configuration is not incidence-isomorphic to the [[Desar

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