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bn:03120858n
Noun Concept
AR
No term available
EN
In mathematics, an Fσ set is a countable union of closed sets. Wikipedia
Relations
Sources
IS A
مجموعة جزئية
مجموعة قابلة للعد
PART OF
الهرمي بوريل
DE
Gδ- und Fσ-Mengen
HAS KIND
مجموعة مغلقة
OPPOSITE OF
EN
Gδ set
STUDIED BY
طوبولوجيا

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