December 2023 0 13 Report
Sprawdź, czy zachodzi równość zbiorów:
a) A ∪ (A ∩ B) = A,
b) A ∩ (A ∩ A) = A
c) (A ∪ B) ∖ (A ∩ B) = (A B) ∪ (B ∖ A),
d) (A ∪ B) ∖ A = B ∖ (A ∩ B).
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