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LAP 2 (Cpt 2)
Question | Answer |
---|---|
set | a collection of items that is well-defined |
element | a member of a set |
roster | a set identified by listing all the elements |
set builder | a set identified using the symbols {x|x...} |
empty set | a set without elements; the null set |
cardinal number | the number of elements in a set |
finite set | a set for which the cardinal number is a natural number |
infinite set | a set for which there is no cardinal number |
equal sets | occurs when 2 sets contain exactly the same elements |
equivalent sets | occurs when there are two sets A and B for which n(A)=n(B) |
Venn diagram | diagram that shows visual relationships among sets |
universal set | the set that contains all elements under discussion |
subset | a set of all whose elements are contained in another set |
complement of a set | the elements in the universal set hat are not in the specified set; A' |
disjoint sets | two or more sets that have no elements in common |
intersection of sets | the set of elements in both specified sets |
union of sets | set of element in either of the specified sets |