2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/87510All fermions and all interactions between fermions are expressed by the Cayley numbers in our space-time. PACS 02.50.Cw 04.20.Cz 11.10.Kk 12.10.Dm4 pages, LaTex, syntax reviseGeneral Physicstext