theorem
  for f being non constant standard special_circular_sequence holds
  RightComp Rotate(f,p) = RightComp f
proof
  let f be non constant standard special_circular_sequence;
A1: RightComp f = LeftComp Rev f by GOBOARD9:23;
  RightComp Rotate(f,p) = LeftComp Rev Rotate(f,p) by GOBOARD9:23
    .= LeftComp Rotate(Rev f,p) by Th29;
  hence thesis by A1,Th36;
end;
