BUILT-IN MATHEMATICA SYMBOL

DeleteDuplicates

DeleteDuplicates[list]
deletes all duplicates from list.

DeleteDuplicates[list, test]
applies test to pairs of elements to determine whether they should be considered duplicates.

Details Details

DeleteDuplicates[list] deletes all but the first occurrence of each distinct element that appears in list.
DeleteDuplicates never reorders elements, but only removes them.
DeleteDuplicates[list] is equivalent to DeleteDuplicates[list, SameQ].

Delete duplicated elements:

Out[1]=

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