2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56827In math-ph/0107007, we present a method to tackle first order ordinary differential equations whose solutions contain Liouvillian functions (LFOODEs), many of them missed by the usual PS-approach. Here, we demonstrate an important result concerning the generality of that method.8 pages, latexMathematical Physicstext