  It is suggested symmetric relative to particles and antiparticles formulation
of the Dirac theory, in which the states with negative energy are excluded. The
fields of particles and antiparticles are associated with the wave functions,
for which there is valid the Born interpretation of being the probability
amplitudes. In doing so, one eliminates different kinds of "paradoxes" in the
theory, which existence is caused by an incorrect account of the states with
negative energy.
