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Re: Some fuzzy with cardinality restriction vs complex property in OWL

From: Ivan Herman <ivan@w3.org>
Date: Sat, 16 Oct 2004 10:16:11 +0200
Message-ID: <4170D8CB.9040107@w3.org>
To: Yuzhong Qu <yzqu@seu.edu.cn>
Cc: www-rdf-interest@w3.org, "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>


>> 
> 
> 
> [Ivan Herman wrote:]
> 
> I am not sure that is true. Isn't it correct that:
> 
> - someValuesFrom(owl:Thing) simply means that *if* there are values *then* at least one
> myst be from owl:Thing, whereas minCardinality(1) means that there *must* be at least one
> value?
> 
> and the same for the second statement?
> 
> 
> [Yuzhong Qu] No. someValuesFrom(owl:Thing) means that there must exist one which is from owl:Thing.
> 
> 

I am sorry, (I checked again :-): you are right.

Ivan

-- 

Ivan Herman
W3C Communications Team, Head of Offices
C/o W3C Benelux Office at CWI, Kruislaan 413
1098SJ Amsterdam, The Netherlands
tel: +31-20-5924163; mobile: +31-641044153;
URL: http://www.w3.org/People/all?pictures=yes#ivan

Received on Saturday, 16 October 2004 08:15:52 GMT

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