Category:Unsolved problems in mathematics: Difference between revisions

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[[eo:Kategorio:Nesolvitaj problemoj en matematiko]]
[[fa:رده:مسئله‌های حل‌نشده در ریاضیات]]
[[fr:Catégorie:Problème non résolu en mathématiques]]
[[ko:분류:수학의 미해결 문제]]
[[id:Kategori:Persoalan matematika yang belum terpecahkan]]