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51Dxx - Geometric closure systems
| 51D05 |
- |
Abstract (Maeda) geometries |
| 51D10 |
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Abstract geometries with exchange axiom |
| 51D15 |
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Abstract geometries with parallelism |
| 51D20 |
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Combinatorial geometries |
| 51D25 |
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Lattices of subspaces |
| 51D30 |
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Continuous geometries and related topics |
| 51D99 |
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Miscellaneous |
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