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10 cards from this deck
∅\varnothing∅
ε\varepsilonε
Union: all elements in AAA or BBB or both
Intersection: elements in both AAA and BBB
Complement: elements not in AAA
Number of elements in set AAA
A∩B=∅A \cap B = \varnothingA∩B=∅
P(A∪B)=P(A)+P(B)−P(A∩B)P(A \cup B) = P(A) + P(B) - P(A \cap B)P(A∪B)=P(A)+P(B)−P(A∩B)
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