2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/210659We give the lower bound on Seshadri constants for the case of very ample line bundles on threefolds. We consider the situation when the Seshadri constant is strictly less than 2 and give a version of Bauer's theorem \cite[Theorem 2.1]{B1} for singular surfaces so we can prove the same result for smooth threefolds.9 pages. To appear in Math. ZeitAlgebraic Geometrytext