Math 2.0

Concept

Reflexive closure

Summary

In mathematics, the reflexive closure of a binary relation RR on a set XX is the smallest reflexive relation on XX that contains RR, i.e. the set R∪{(x,x)∣x∈X}R \cup \{(x,x) \mid x \in X \}.

Further reading

  1. Wikipedia, page 22603618, revision 1360406510, Reflexive closure. adopted
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Changed4 November 2026

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