Problem with SWI-Prolog

From: "SRocha" <msmr@xxxxxxxxxx>
Date: Mon, 30 May 2005 09:21:19 +0100

Hi,

I have a doubt in SWI-Prolog. L and C are line and column respectively.
I want that swi-prolog consider the numeric value of C-1. Is there any
function to do this.
the result of the query must be yes.

q(9,8).
p(L,C) :- q(L,C-1).

?-p(9,9)
No

Thanks in advance

SRocha

.

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- Re: Problem with SWI-Prolog
  - From: Geoffrey Summerhayes
- Re: Problem with SWI-Prolog
  - From: Ligezin

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