Cho tập A = {1, 2, 3, 4, 5, 6}. Cho A$_{1}$ = {1, 2, 3}, A$_{2}$ = {4, 5}, A$_{3}$ = {6}. Quan hệ tương đương R trên A sinh ra phân hoạch A$_{1}$, A$_{2}$, A$_{3}$ là:

A. {(1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (1,2), (2,1), (1,3), (3,1), (2,3), (3,2), (4,5), (5,4)}

B. {(1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (1,2), (2,1), (1,3),(3, 1),(5, 6), (6,5)}

C. {(1,1), (1,2), (2,2), (3,4), (3,3), (5,6), (4,4), (5,5), (6,6)}

D. {(1,1), (2,2), (3,3), (4,4), (5,5), (6, 6), (1,2), (2,1), (1,3), (3,1), (3,4), (4,3)}

Hướng dẫn

Chọn A là đáp án đúng