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In mathematics, particularly in measure theory and set theory, a **ring of sets** is a collection of sets that is closed under certain operations. More formally, a family \( R \) of sets is called a ring if it satisfies the following properties: 1. **Closure under intersection**: If \( A \) and \( B \) are in \( R \), then \( A \cap B \) is also in \( R \).

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  1. Families of sets
  2. Combinatorics
  3. Fields of mathematics
  4. Mathematics
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