 reserve G for Group;
 reserve H for Subgroup of G;
 reserve a, b, c, x, y for Element of G;
 reserve h for Homomorphism of G, G;
 reserve q, q1 for set;

theorem Th14:
  for f, g being Element of InnAut G holds (AutComp G).(f, g) = f * g
proof
  let f, g be Element of InnAut G;
  f is Element of Aut G & g is Element of Aut G by Th12;
  hence thesis by Def2;
end;
