Sets Flashcards
1
Q
how notate x is a set of S
A
2
Q
what do these mean?
A
3
Q
is a set ordered or unordered?
A
unordered
4
Q
subset symbol
A
proper subset means its not equal. subset normally can be equal
5
Q
Set is like a box.
Cardinality is counting number of elements in a box
A
null set cardinality = 0
set of a null set = 1
6
Q
what is a power set?
A
the set of all subsets of Sthe set of all subsets of S
7
Q
how many subsets are in a set S
A
2^|S|
|s| is cardonality = number of elements
8
Q
A
