Lesson 1.2.1 Flashcards
1
Q
set
A
collection of items
2
Q
element
A
an item in a set
3
Q
intersection
A
the intersection of two sets is a single set that contains only the elements that are common to the original sets
4
Q
union
A
the union of two sets is a single set of all the elements of the original sets
5
Q
empty set
A
set containing no elements
6
Q
universe or universal set
A
the universe, for a particular situation is the set that contains all of the elements relating to the situation
7
Q
complement
A
the set of elements and U that are not in A
8
Q
subset
A
set b is a subset of set a if every element of set B is an element of set A
9
Q
cross product
A
the cross product of 2 sets A and B, represented as A x B, is a set whose elements are ordered pairs of the form (a,b) where a is an element of A and b is an element of B
