2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89800Relativistic spin 1/2, as represented by Susskind's 1977 discretization of the Dirac equation on a spatial lattice, is shown to follow from basic, not typically relativistic but essentially quantum theoretic assumptions: that position eigenstates propagate to nearest neighbours while respecting lattice symmetries modulo gauge transformations.15 pages, no figuresQuantum PhysicsHigh Energy Physics - Latticetext