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Re: Semantics of rdf:Statement

From: Pat Hayes <phayes@ihmc.us>
Date: Tue, 5 Jan 2010 00:54:29 -0600
Cc: semantic-web@w3.org
Message-Id: <3680D68D-F0A9-4528-B46C-039A5AC11124@ihmc.us>
To: darood <samatar.sharmarke@gmail.com>

On Jan 4, 2010, at 5:11 PM, darood wrote:

>
> Cheers Dan, I had one more question which I am a bit wary about:
>
> Is the following which I listed as transitive, symmetric and/or  
> functional
> correct?				
> •	“taller than” - Transitive

Yes.   Inverse would be "shorter than"

> •	“sister of” - Symmetric

No. Mary sisterOf John, but not John sisterOf Mary.

Inverse would be "has sister"

> •	“mother of” - Functional

No. Mary motherOf Bill and Mary motherOf John is possible. motherOf is  
inverse functional; hasMother (its inverse) is functional.

> •	“likes” - Symmetric

Unfortunately, no. If it were, personal relationships would be a lot  
easier than they are. Inverse would be "liked by"

> •	“eats” - Functional

??

> •	“neighbour of” - Symmetric

Yes. This is its own inverse.

Hope this helps.

Pat Hayes

>
> Can you help me get the inverse properties of each example?
>
>
> Thanks in adv.
> Darood
> -- 
> View this message in context: http://old.nabble.com/Semantics-of-rdf%3AStatement-tp11705919p27020856.html
> Sent from the w3.org - semantic-web mailing list archive at  
> Nabble.com.
>
>
>

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Received on Tuesday, 5 January 2010 06:55:37 UTC

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