From: CMSC 430
Subject: remove
Date: Mon, 26 Oct 1992 02:09:29 +0000
Message-ID: <16341@umd5.umd.edu>

Is there any function that will delete one occurrence of an element from a list
instead of all occurrences like remove?
·····@macbeth.umd.edu

From: Kent M Pitman
Subject: remove
Date: Mon, 26 Oct 1992 02:46:43 +0000
Message-ID: <19921026024913.2.KMP@PLANTAIN.SCRC.Symbolics.COM>

If it's Common Lisp you're using, try using the :COUNT argument to REMOVE.
 (remove 'y (list 'x 'y 'x 'y 'x 'y) :count 1) => (X X Y X Y)