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10 questions from this quiz
A collection of distinct objects
n(A)n(A)n(A) or ∣A∣|A|∣A∣
333
∅\varnothing∅
000
Every element of BBB is in AAA
BBB has strictly fewer elements
Yes, A⊆AA \subseteq AA⊆A always
{2,4}\{2, 4\}{2,4}
All elements under consideration
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