File:Sorgenfrey plane.png
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Sorgenfrey_plane.png (399 × 388 pixels, file size: 5 KB, MIME type: image/png)
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An illustration of the w:Sorgenfrey plane, showing the anti-diagonal in blue and a typical open rectangle in red. The open rectangle meets the anti-diagonal at a single point; such rectangles can be used to show that the anti-diagonal is an uncountable discrete subspace of the Sorgenfrey plane, and hence that separability does not inherit to subspaces.
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:52, 20 June 2008 | | 399 × 388 (5 KB) | Sullivan.t.j (talk | contribs) | An illustration of the Sorgenfrey plane, showing the anti-diagonal in blue and a typical open rectangle in red. The open rectangle meets the anti-diagonal at a single point; such rectangles can be used to show that the anti-diagonal is an [[uncounta |
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