Re: backtracking in LISP versus PROLOG

Subject: Re: backtracking in LISP versus PROLOG
From: Erik Naggum <cl@naggum.no>
Date: 1998/06/08
Newsgroups: comp.lang.lisp
Message-ID: <3106313901639369@naggum.no>


* <koen.janssens1@student.kuleuven.ac.be>
| We all know how easy it is to backtrack in a logical language like
| Prolog.  In functional languages (LISP) however, this problem isn't so
| easily solved, because a function can have only one result.

  evaluate (apropos "MULTIPLE-VALUE") in your favorite Common Lisp and
  re-evaluate your position after looking up these symbols in the standard
  or in the HyperSpec at http://www.harlequin.com/books/HyperSpec/.

#:Erik
-- 
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