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From: "Vladimir Olensky" <vladimir_olensky@yahoo.com>
Subject: Re: histrionics
Date: 1999/09/11
Message-ID: <rtk7od9h1iv79@corp.supernews.com>#1/1
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Date: 1999-09-11T00:00:00+00:00
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Robert Dewar wrote in message <7rcckp$b12$1@nnrp1.deja.com>...
>In article <rtiq3si91iv24@corp.supernews.com>,
>  "Vladimir Olensky" <vladimir_olensky@yahoo.com> wrote:
>> Another thing is that it may be difficult for many people to
>grasp
>> the idea of backtracking and recursion and be able to
>understand
>> program execution that uses them.
>
>No, in Prolog, the difficulty is not understanding the
>backtracking, that's the easy part, or it would be easy
>if it were pure, but the cut operator is like falling
>off a semantic cliff, and the frequent need to use cut
>is a severe disappointment.


I had this in mind when was talking about backtracking.
In Prolog  cut operator significantly complicates
comprehending of the backtracking process.

Regards.