Set
A
group of numbers, variables, geometric
figures, or just about anything.
Sets are written using set braces {}. For example, {1,2,3}
is the set containing the elements 1, 2, and 3.
Note: Order does
not matter in a set. The sets {a,b,c} and {c,a,b} are the same
set. Repetition does not matter either, so {a,b} and {a,a,b,b,b}
are the same set.
See
also
Interval notation, setbuilder
notation,
set intersection, union, set
subtraction, Venn diagrams, solution
set
