Path: utzoo!mnetor!uunet!mcvax!inria!crcge1!ranson
From: ranson@crcge1.UUCP (D. Ranson CNET)
Newsgroups: comp.lang.prolog
Subject: Yet another stupid question
Message-ID: <3379@crcge1.UUCP>
Date: 7 Apr 88 07:12:48 GMT
Lines: 7


What is the difference between the ?- and :- operators in front of a
goal? I have seen both used in several Prolog books or manuals, with
no discernable pattern, and without any explanation.

     Daniel Ranson
     ...!mcvax!inria!crcge1!ranson