It leads to the Fermi level in the band theory of solids, used in conductors and semi-conductors.  
It leads to the Fermi level in the band theory of solids, used in conductors and semi-conductors.  Another consequence of this uses an anti-symmetrical matrix and leads to the Slater determinant.  One consequence of this statement in astrophysics is known as electron and neutron degeneracy.  It does not apply to some particles of whole integer spin such as photons and gluons known as bosons, but it does to all those with half integer spin, known as fermions, which include electrons.  FTP, name this rule that states no two electrons in an atom may have the same set of quantum numbers.
It leads to the Fermi level in the band theory of solids, used in conductors and semi-conductors.  
{Pauli Exclusion} Principle