| Wikimedia administration category | Q15647814 |
| P971 | category combines topics | Wikidata property usage tracking category | Q24514938 |
| value same as Wikidata | Q29075123 | ||
| P1659 | related property | MathWorld ID | P2812 |
| P2812 | MathWorld ID | category for value same as Wikidata | P3734 |
| Categoria:P2812 uguale su Wikidata | wikipedia |
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