2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73459Based on a bijection between domino tilings of an Aztec diamond and non-intersecting lattice paths, a simple proof of the Aztec diamond theorem is given in terms of Hankel determinants of the large and small Schröder numbers.8 pages, 4 figuresCombinatorics05A15text