About: Fσ set

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Countable union of closed sets

Property	Value
dbo:description	pojęcie topologii (pl) счётное объединение замкнутых множеств (ru) countable union of closed sets (en) kalkulebla kunaĵo de fermitaj aroj (eo) união enumerável de conjuntos fechados (pt)
dbo:wikiPageWikiLink	dbr:Cartesian_plane dbr:French_language dbr:Borel_hierarchy dbr:Closed_set dbr:Complement_(set_theory) dbr:Gδ_set dbr:Origin_(mathematics) dbr:Point_(geometry) dbr:Union_(set_theory) dbr:T1_space dbr:Open_set dbr:Rational_number dbr:Duality_(mathematics) dbc:Topology dbc:Descriptive_set_theory dbr:P-space dbr:Metrizable dbr:G-delta_set dbr:Line_(mathematics) dbr:Countable dbr:Slope_(mathematics)
dbp:wikiPageUsesTemplate	dbt:Topology-stub dbt:Reflist dbt:Wikt-lang
dct:subject	dbc:Topology dbc:Descriptive_set_theory
rdfs:label	Fσ set (en) Fσ-Menge (de) Ensemble Fσ (fr) Fσ集合 (ja) Zbiór typu F-sigma (pl) F-сигма-множество (ru) F-сігма-множина (uk) Fσ集 (zh)
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