問題詳情
13. (3%) Let A be a set with n elements. Which of the followings is the number of binary relations on A whichare reflexive and not symmetric?
(A)
(B)
(C)
(D)
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增
難度：計算中-1
書單：沒有書單，新增
13. (3%) Let A be a set with n elements. Which of the followings is the number of binary relations on A whichare reflexive and not symmetric?
(A)