Pernyataan 1 : A n (B u C)
B u C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
A n (B u C) = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
Pernyataan 2 : (A n B) u (A n C)
A n B = {2, 4, 6, 8, 10}
A n C = {1, 3, 5, 7, 9}
(A n B) u (A nC) = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
Jadi
A n (B u C) = (A n B) u (A n C) terukti