2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59783This paper shows the equivalence of the Riemann hypothesis to an sequence of elementary inequalities involving the harmonic numbers H_n, the sum of the reciprocals of the integers from 1 to n. It is a modification of a criterion due to Guy Robin.9 pages, Latex, explanatory section 2 added; proofs simplifiedNumber Theory11M26 (Primary) 11A25 (Secondary)text