حاصل عبارت‌های زیر را بنویسید: $n(A \cup B) = n(A) + n(B) - n(A \cap B)$ $n(A \cup B)' = n(U) - n(A \cup B)$ $n(A \cap B)' = n(U) - n(A \cap B)$ $n(A' \cap B') = n(A \cup B)' = n(U) - n(A \cup B)$ $n(A' \cup B') = n(A \cap B)' = n(U) - n(A \cap B)$ $n(A - B) = n(A) - n(A \cap B)$ $n(B - A) = n(B) - n(A \cap B)$ $n(A' \cap B) = n(B - A) = n(B) - n(A \cap B)$ $n(A \cap B') = n(A - B) = n(A) - n(A \cap B)$ $n(A \cup B)' =$ $n(A' \cap B') =$