2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134786We show that any point in the convex hull of each of (d+1) sets of (d+1) points in R^d is contained in at least floor((d+2)^2/4) simplices with one vertex from each set.4 pages, revised style and organizationCombinatorics52C45, 52A35text