{{ item.displayTitle }}

No history yet!

Student

Teacher

{{ item.displayTitle }}

{{ item.subject.displayTitle }}

{{ searchError }}

{{ courseTrack.displayTitle }} {{ statistics.percent }}% Sign in to view progress

{{ printedBook.courseTrack.name }} {{ printedBook.name }} A set is a collection of unique objects called elements. A set is usually written within curly brackets; the order of the elements in the set does not matter. $List:apple,banana,bicycle,peanut↓Set:{banana,apple,peanut,bicycle} $ The example above is a list of objects, but sets can be made up of numbers as well! $List:3,3,2,1↓Set:{1,2,3} $ Notice that although $3$ occurs twice in the list, unique elements of a set are only considered once and the original order of the list can be disregarded. Generally speaking, a number set is a group of numbers that share certain characteristics. $Even:Odd:Prime: {2,4,6,8,10…}{1,5,7,9,11…}{2,3,5,7,11…} $ When discussing mathematical theory, it is important to understand the distinction between certain number sets.