Relational Analysis of Dirac Equation in Momentum Representation

In terms of the relational approach to space-time geometry and physical interactions, we show that Dirac equation for a free fermion in momentum representation can be obtained starting from binary system complex relations (BSCR) between elements two abstract sets. With derivation performed, 4-dimensional pseudo-Euclidean space is not needed priori but naturally emerges considerations rather general nature (2-spinor algebra). A bispinor wave function constructed with positive energy an arbitrary distribution momenta. Special attention paid assumptions should made enable construction.