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Properties With the Properties Menu, you can easily check the properties of your table and determine if it is a group. The only property that is difficult to check without a computer is associativity. GU displays messages for each property. If there is an identity, GU highlights the relevant row or column as illustrated on the right. It also displays the inverse of each element. For tables that you create, you must make sure that it is a group before you use the adjacent Subgroups Menu.
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