2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138316Sets in R^n in which every pair of elements x, y can be connected by a path in the set of length bounded by a constant multiple of the distance between x and y are considered.5 pages, latex-2e. A few clarifications and additionsClassical Analysis and ODEsSome aspects of calculus on non-smooth setstext