REMOVE-DUPLICATES-EQUAL

remove duplicates from a list
Major Section:  PROGRAMMING

Remove-duplicates-equal is the same as remove-duplicates, except that its argument must be a true list (not a string), and equal is used to check membership rather than eql. See remove-duplicates.

The guard for Remove-duplicates-equal requires that its argument is a true list. Note that unlike remove-duplicates, it does not allow string arguments.