| Bretschers book gives on page 125 some information on the history of linear spaces. The 4 people on the right belong to the first who formalized geometry in n-dimensional space. |
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| M | A | T | H |
| 2 | 1 | B |
| Bretschers book gives on page 125 some information on the history of linear spaces. The 4 people on the right belong to the first who formalized geometry in n-dimensional space. |
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