2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/116803According to Einstein's principle of general covariance, all laws of nature are to be expressed by manifestly covariant equations. In recent work, the covariant law of energy-momentum conservation has been established. Here, we show that this law gives rise to a fully covariant theory of gravitation and that Einstein's field equations yield total energy-momentum conservation.5 pages, LaTeXGeneral Physicstext