sigma-ring
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In mathematics, a nonempty collection of sets is called a -ring (pronounced sigma-ring) if it is closed under countable union and relative complementation.
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Article
6 sectionsContents
- Formal definition
- Properties
- Similar concepts
- Uses
- See also
- References
In mathematics, a nonempty collection of sets is called a -ring (pronounced sigma-ring) if it is closed under countable union and relative complementation.
== Formal definition ==
Connections
sigma-algebra
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mathematics
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set
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integral
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union
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topological space
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complement
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measure
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sample space
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disjoint sets
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closure
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measurable function
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filter
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universe
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disjoint union
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Walter Rudin
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upward directed set
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field of sets
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family of sets
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ring of sets
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