[21R](Solved on 2021-11-18) Note that if \((X,β€_ X)\) and \((Y,β€_ Y)\) are equiordinate then \(X\) and \(Y\) are equipotents; but given an infinite set \(X\), there exist on it orders of different types β even if we consider only the well orders. (See for example exercise [08K])
