reserve S for Subset of TOP-REAL 2,
  C,C1,C2 for non empty compact Subset of TOP-REAL 2,
  p,q for Point of TOP-REAL 2;
reserve i,j,k for Nat,
  t,r1,r2,s1,s2 for Real;
reserve D1 for non vertical non empty compact Subset of TOP-REAL 2,
  D2 for non horizontal non empty compact Subset of TOP-REAL 2,
  D for non vertical non horizontal non empty compact Subset of TOP-REAL 2;
reserve s for rectangular FinSequence of TOP-REAL 2;

theorem
  for f being rectangular FinSequence of TOP-REAL 2 holds LeftComp f <>
  RightComp f
proof
  let f be rectangular FinSequence of TOP-REAL 2;
  LeftComp f misses RightComp f by Th88;
  hence thesis;
end;
