 A set is a collection of objects …  Each object in a set is called an element…

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Presentation transcript:

 A set is a collection of objects …

 Each object in a set is called an element…

 “U is an element of the periodic table” (dat be some good grammer)

 A set can be notated in three different ways:

 1) a description of the set… “The Periodic Table of Elements”

 2) Roster notation (a list of all elements in the set)… {Hydrogen, Helium, Lithium,…}

 3) Set-builder notation (a specific format for describing a set)… {x|x is an element in the periodic table}

 The number of unique elements in a set is called its Cardinality  Skdjfhs = 118 ish The order of the elements is unimportant

 Sets can be empty... { } or contain no elements (“the empty set”) Sets can also be infinite… (more about that later!)

 Two sets that have the same elements are equal… =

 Two sets that have the same number of elements are equivalent…  xjbvz Is Equivalent To

 Welcome to  Let the games begin!