[Om] Adding DLMF links to CDs [Re: How to translate csymbol/@definitionURL]

Paul Libbrecht paul at activemath.org
Sun Jul 18 01:13:07 CEST 2010

Le 17-juil.-10 à 23:08, David Carlisle a écrit :

> However if you wanted to make the assrtion in openmath you want to say
> OM sin is same as dmlf sin so something like
>  <OMOBJ>
>     <OMA>
>       <OMS cd="owl" name="sameAs"/>
>       <OMS cd="transc1" name="sin"/>
>       <OMS cd="dmlf" name="sin"/>
>     </OMA>
> </OMOBJ>

I think Christoph wants to link *some symbol* to an external place  
which probably also describes it. Whether transc1#sin or another is  
not important.
What you propose above just pushes the problem further: how do you  
annotate dlmf#sin to be related to the DLMF's sin?

Isn't it pretty obvious that treating in OpenMath things outside  
OpenMath is problematic?

Don't we need some "functors" down here that would "create an OpenMath  
something" based on some external description? Here's my 2p, using  a  
functor external1#dlmf-description which would be interpreted as "a  
symbol defined in the text pointed at the named URL with the classical  
rigor of DLMF".

   <OMA><OMS cd="relation1" name="eq"/>
         <OMS cd="transc1" name="sin"/>
		<OMS cd="external1" name="dlmf-description"/>

I would tend to feel this as being cleaner.
And I have no preference between relation1#eq and owl#sameAs. I think  
the more interesting question is what would be the equivalence of  
subclass statements.


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