Sets and Venn Diagrams
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8 Terms
1
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well defined set
A set where you can clearly tell if an item is in it. Ex: pens in my pencil case
2
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Subset
A set where all elements are in another set
3
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universal set
containing all elements
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null set
a set with nothing inside
5
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cardinality
how many elements are in the set
6
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Union of sets
everything from both sets with no repeats
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Intersection of sets
The things that are in both sets
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difference of sets
just remove anything from the other set that contains the same element
Note 
Flashcards (125)