reserve a,b,c,d,x,j,k,l,m,n,o,xi,xj for Nat,
  p,q,t,z,u,v for Integer,
  a1,b1,c1,d1 for Complex;

theorem
  for a,b be non zero Integer, n be non zero Nat holds
  a = b|^n implies (for p be prime Nat holds n divides p |-count a) by LmC10;
