reserve i,j,k,n,m,l,s,t for Nat;
reserve a,b for Real;
reserve F for real-valued FinSequence;
reserve z for Complex;
reserve x,y for Complex;
reserve r,s,t for natural Number;
reserve p,q for natural Number;
reserve i0,i,i1,i2,i4 for Integer;
reserve x for set;

theorem Th71:
  SetPrimenumber p is finite
proof
  SetPrimenumber p c= Seg p by Th70;
  hence thesis;
end;
