chapter 2.1 vocab

empty, 0/

a set that contains no elements is called the null or the _______ set. this set is represented by {} or_______.

Cardinal, n(A)

the number of distinct elements in a set is called the______ number of the set. if A represents the set, this number is represented by_____.

natural numbers

the set N={1,2,3,4,5,....} is called the set of_______.

roster method, set builder

the set {California, Colorado, Connecticut} is expressed using the_______ method. the set {x|x is a u.s. state who's name begins with c} is expressed using________ notation.

is an element

the symbol E is used to indicate than an object______ of a set

equal

two sets that contain the same elements are called_____ sets.

equivalent

two sets that contain the same number of elements are called______ sets.