For the first time it is constructed by V. Shevelev an
arithmetics in the base of Fermi-Dirac statistics (when each "cell"
could be filled not more than 1 subject) (Izv. of Sev-Kavk Sc. Center,
Maths. N.2 (1981), 13-17).
Development: Izv. Vuzov, Sev-Kavk region, nature sc. 4 (1996), 28-42.