A = {4, 5, 6, 7] B = {1, 2, 3, 5, 6, 9] C = {2, 4, 5, 8, 9]
b1) A ∩ (B ∩ C) = {5}
b2) (A ∩ B) ∪ C = {5,6} u C = {2,4,5,6,8,9}
b3) A ∩ (B ∪ C) = {4,5,6}
b4) (A ∩ B) ∪ ( A ∩ C) = {5,6} u {4,5} = {4,5,6}
b5) A ∪ (B ∩ C) = A u {2,5,9} = {2,4,5,6,7,9}
b6) (A ∪ B) ∩ (A ∪ C) = { 1,2,3,4,5,6,7,9} n {2,4,5,6,7,8,9} = {2,4,5,6,7,9}
Bitte alles nachprüfen am Venndiagramm.
Beachte b5 = b6 und b3 = b4. Das gemäss Distributivgesetz für diese Mengenoperationen,