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Sets

Junior Cert

QuestionAnswer
{ } a collection of elements
A ∩ B objects that belong to set A and set B
A ∪ B objects that belong to set A or set B
A ⊂ B subset has fewer elements than the set
Ø Ø = {} empty set
#A the number of elements of set A
a∈A element of
Created by: saragracekelly
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