bn:01867930n
Noun Concept
Categories: Descriptive set theory, General topology
EN
Gδ set  G-delta  G-delta set  G delta  G delta set
EN
In the mathematical field of topology, a Gδ set is a subset of a topological space that is a countable intersection of open sets. Wikipedia
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EN
In the mathematical field of topology, a Gδ set is a subset of a topological space that is a countable intersection of open sets. Wikipedia
Countable intersection of open sets Wikidata
Wikipedia
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Wikidata
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