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Date: Thu, 30 Jun 2005 10:41:23 +0100
From: John <no@email>
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Subject: Re: Simple Example, How To Model It In RM
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Xref: dp-news.maxwell.syr.edu comp.databases.theory:31844

Neo wrote:

> Could some post a RM script equivalent to the following xrdb script?
> 
> // Create type person and make it an item of main directory.
> // Note: "inst" is short for instance.
> (CREATE type inst *person  & dir item it)
> 
> // Create persons john, mary and sue.
> (CREATE person inst *john)
> (CREATE person inst *mary)
> (CREATE person inst *sue)
> 
> // Create verb to relate things.
> (CREATE verb inst *friend)
> (CREATE verb inst *like)
> (CREATE verb inst *because)
> 
> // Create relationships between persons, etc.
> (CREATE john friend mary)
> (CREATE mary friend john)
> (CREATE sue like john because (mary friend john))
> 
> // Why does Sue like John?
> // Returns (mary friend john).
> (SELECT sue like john because *)
> 
> // What is the relationship between john and mary?
> // Returns friend.
> (SELECT john * mary)
> 
> 
> To implement above, copy and paste into xrdb's input box and press
> submit button. To view the data, expand tree node labeled "person". For
> more info, see www.xrdb.com/example
> 

No I cannot, and I request that no other posters do.

You have been indulged (by me among others) in previous similar trials, 
and have failed to produce an advocacy paper with a theoretical or 
mathematical discussion of your language.

You are spamming this newsgroup with what amounts to commercial 
advertising, since you are unwilling to provide any theory.

John