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From: gerda@kulcs.UUCP (Gerda Janssens)
Newsgroups: comp.lang.prolog
Subject: difference lists
Message-ID: <599@kulcs.UUCP>
Date: Thu, 22-Jan-87 06:51:29 EST
Article-I.D.: kulcs.599
Posted: Thu Jan 22 06:51:29 1987
Date-Received: Fri, 23-Jan-87 03:39:27 EST
Reply-To: gerda@kulcs.UUCP (Gerda Janssens)
Distribution: world
Organization: Dep. of Computer Science, Katholieke Universiteit Leuven
Lines: 7
Keywords: difference lists ,The Art of Prolog


In 'The Art of Prolog' of Sterling and Shapiro at page 254.

The program for flatten using enqueue and dequeue (Program 15.12)

?- flatten ([[a,b],c], _res) gives
	_res = [a,c,b] : the order is not preserved.