2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89414We have shown in a previous paper that the Dirac bispinor can vary like a four-vector and that Quantum Electrodynamics (QED) can be reproduced with this form of behaviour.(2) We have also shown in part I (3) of this paper, that QED with the same transformational behaviour also holds in a second space which we called M-space. Here we use M-space to show that QED can be reduced to two simple rules for a two-body interaction.31 pages, references updated - no other changesQuantum Physicstext