2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/64750We state and prove a Lemma in 1 variable Calculus, that justifies some arguments previously used to ilustrate non-uniqueness of some generalized physical quantities.4 pages. A Lemma in 1 variable CalculusGeneral Mathematics26A06On some sequences of functions and their applications in Physicstext