File:Hole with a 2-dimensional boundary.png
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Summary
| Description |
English: The yellow box is a topological space X. The blue sphere is a 2-dimensional sphere in X. It cannot be shrunk continuously to a point in X; therefore; X has a hole with a 2-dimensional boundary. |
| Date | |
| Source | Own work |
| Author | Erel Segal |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:53, 1 May 2022 | | 413 × 409 (30 KB) | Erel Segal | Uploaded while editing "Hole (topology)" on en.wikipedia.org |
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