设全集U=﹛0.1.2.3.4﹜,M=﹛0.1.2.3﹜,N=﹛0.3.4﹜
则CuN={1,2}
∴M∩﹙CuN﹚={1,2}
MYN=?
是MUN吧,等于{0,1,2,3,4}