The centered ordinal-sum identities (equation 9) (re-export) #
Compatibility module. The development lives in
Copula.Rank.Region.Common.CenteredOrdinal, namespace
ProbabilityTheory.Copula.RankRegion.Common. The export below makes its public
declarations available under
ProbabilityTheory.Copula.RankRegion.XiBlest.Support
as the very same constants.