Category:Unsolved problems in mathematics: Difference between revisions

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[[es:Categoría:Problemas no resueltos de la matemática]]
[[eo:Kategorio:Nesolvitaj problemoj en matematiko]]
[[fa:رده:مسائل حل نشده ریاضیریاضیات]]
[[ko:분류:수학의 미해결 문제]]
[[id:Kategori:Persoalan matematika yang belum terpecahkan]]