2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/205128We show that if Yang's model as the earliest TSR is completed, it should contain both Snyder's quantized space-time model as the earliest DSR, the de Sitter SR and their duality.10 pages, typos correctedHigh Energy Physics - TheoryYang's Model as Triply Special Relativity and the Snyder's Model--de Sitter Special Relativity Dualitytext