reserve E for compact non vertical non horizontal Subset of TOP-REAL 2,
  C for compact connected non vertical non horizontal Subset of TOP-REAL 2,
  G for Go-board,
  i, j, m, n for Nat,
  p for Point of TOP-REAL 2;

theorem
  for p be non trivial FinSequence of TOP-REAL 2 for v be Point of
  TOP-REAL 2 holds Rotate(p,v) is_in_the_area_of p by Th9,SPRECT_2:21;
