One application of the σ-local formations of finite groups of
all primes P. If
n is an integer, the symbol σ(
n) denotes the set {σi|σi ∩ π(
n) 6= ∅}. The integers
n Majorizatiuon and Zipf-Mandelbrot law,
chi(2)-distance for Z-M law and triangular discrimination for Z-M law. At the end, we give important