Introduction
The role of antisymmetry requirement of wave functions in the structure of many-electron system configurational space (atoms and molecules, including their excited states [7]) is shown in [1-6]. One of the consequences of this requirement is prohibition for electrons to take some spaces in physical space with zero value of the wave function. These positions of electrons determine some nodal surfaces in configurational space, which divide the space to N ! (N ! = 1∙2∙3∙…∙N ) equivalent areas for atoms and molecules withN electrons. The equivalence means that, in case we receive the solution of Schrödinger equation (Ψ function) for one such area, the solution for the rest of them is received simply by permutation of the electron indices [8]. In the same article [8] it is shown that some unknown fundamental physical forces called antisymmetry forces by us must exist. Specifically they forbid to electrons to take the positions mentioned above and characterized usually by some symmetry. In paper [9] the hypothesis was offered that the wave function turns to zero for configurations with equal potentials of any two electrons with the same spins. This hypothesis was proved with calculations for He, Li and Be atoms and for molecules H2 in triplet state and LiH [10, 11]. In the present paper same foundation of our hypothesis is given.