2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/166287The goal of this paper is to present the way to define fermionic fields and their Lagrangians in terms of three orthogonal vector fields of norm 1 together with two real valued scalar fields. This paper is based on a toy model where there are no Grassmann variables.8 pages, no figuresGeneral Relativity and Quantum Cosmologytext