Roster notation for integers is a way to list all the elements of a set explicitly. For the set of all integers, it is typically represented as ( \mathbb{Z} = { \ldots, -3, -2, -1, 0, 1, 2, 3, \ldots } ), indicating that it includes all positive and negative whole numbers, as well as zero. Since the set of integers is infinite, roster notation is often represented using ellipses to indicate continuation in both directions.
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