Assertion: set's number | /r/HasProperty | ∈ v \displaystyle v\in v
Facets:
Source sentences:
text: A Vitali set is a subset V {\displaystyle V} of the interval  of real numbers such that, for each real number r, there is exactly one number v ∈ V {\displaystyle v\in V} such that v−r is a rational number.