reserve T,U for non empty TopSpace;
reserve t for Point of T;
reserve n for Nat;

theorem Th1:
  L[01](0,1,0,1) = id Closed-Interval-TSpace(0,1)
  proof
    L[01](0,1,0,1) =
    (id Closed-Interval-TSpace(0,1))*(id Closed-Interval-TSpace(0,1))
    by BORSUK_6:def 1,TREAL_1:10,14;
    hence thesis by SYSREL:12;
  end;
