(1,2.3,4)的子集、真子集、非空子集、非空真子集分别是哪几个_数学解答

(1,2.3,4)的子集、真子集、非空子集、非空真子集分别是哪几个

人气：145 ℃　时间：2019-11-07 13:20:55

解答

{1,2,3,4}子集：{},{1},{2},{3},{4},{1,2},{1,3},{1,4},{2,3},{2,4},{3,4},{1,2,3},{1,2,4},{1,3,4},{2,3,4},{1,2,3,4}（16个）真子集：{},{1},{2},{3},{4},{1,2},{1,3},{1,4},{2,3},{2,4},{3,4},{1,2,3},{1,2,4},{1...