Math notes 9/21 on sets
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9 terms
Terms | Definitions |
|---|---|
 finite sets | elements can be counted {1,2,3} |
| Infinite sets | endless {1,2,3...} |
| null set | empty set; contains no elements {} |
| equal sets | contain the exact same elements {1,2,3} and {3,1,2} |
| equivalent sets | contain same number of elements; one-to-one correspondence; a and b both have 3 elements |
| subset | set A is a _____ of [∈] set B if every element of A is an element of B |
| roster | other name for list |
| member | every object that belongs to a set |
| element | every object that belongs to a set |
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