The reflexive closure of a binary relation on a set is the minimal reflexive relation on that contains . Thus for every element of and for distinct elements and , provided that .
Reflexive Closure
See also
Reflexive, Reflexive Reduction, Relation, Transitive ClosureExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Reflexive Closure." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ReflexiveClosure.html