Category:Unsolved problems in mathematics: Difference between revisions

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[[nn:Kategori:Uløyste problem i matematikk]]
[[pl:Kategoria:Otwarte problemy matematyki]]
[[pt:Categoria:Problemas não resolvidos da matemática]]
[[ro:Categorie:Probleme nerezolvate ale matematicii]]
[[sl:Kategorija:Nerešeni matematični problemi]]