2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73137We exhibit a model structure on 2-Cat, obtained by transfer from sSet across the adjunction C_2 o Sd^2 -| Ex^2 o N_2.Algebraic TopologyCategory Theory18G55 (primary); 55U35; 55U40; 55U10 (Secondary)text