On 1/10/13 3:44 PM, Ed Barkmeyer wrote:
> On 1/10/2013 2:51 PM, Kingsley Idehen wrote:
>> On 1/10/13 2:32 PM, Ed Barkmeyer wrote:
>>> On 1/9/2013 8:36 AM, John F Sowa wrote:
>>>>> Sjir,
>>>>>
>>>>>>> I would just have said that a datum is a proposition that is taken to
>>>>>>> be, or asserted to be, true. The context for that role is any context
>>>>>>> in which the proposition is taken to be true.
>>>>> I agree.
>>>>>
>>>>> I would also add that not all data is propositional. For example,
>>>>> the list of names and numbers in a telephone book consists of paired
>>>>> instances of two kinds of data. Each pair becomes a proposition
>>>>> when the instances are inserted in an appropriate schema:
>>>>>
>>>>> "The person named _________ has the telephone number ________."
>>> I disagree. That is, the meaning of each pair in the telephone
>>> directory is a proposition of that form, and the pair is a datum. It is
>>> not necessary to express the sentence per se.
>>>
>>> Is John saying that the name of the person is not by itself a
>>> proposition? I would argue that, if one considers the name of the
>>> person alone to be a datum, then it expresses a different proposition,
>>> to wit: There exists a person whose name is X. Further, the presence of
>>> the name in the telephone book implies the proposition: There exists a
>>> telephone number N such that the person named X has telephone number N.
>>> Both of these follow from the proposition that is the meaning of the
>>> pair (datum).
>>>
>>> The distinction I am making is in what the datum is. I argue that a
>>> datum is a proposition. A value without any interpretation is not a
>>> datum. It is a child without a meaning.
>>>
>> Thus, in Turtle notation [1] for RDF model based data representation
>> syntax, the following is an example of a Datum (a single proposition),
>> right?
>>
>> <#PersonX> <#hasPhoneNumber> <tel:+999-999-9999> .
>>
>> While this is Data i.e., more than one proposition, as in:
>>
>> <#PersonX> <#hasPhoneNumber> <tel:+999-999-9999> ;
>> <#knows> <#PersonY> .
> IMO, yes.
>
> -Ed
>
> (01)
So building on the above, a Sentence is a Datum. Likewise, a Paragraph
is Data.
The paragraph above expressed in Turtle notation as: (02)
<#Sentence> <#sameAs> <#Datum> .
<#Paragraph> <#sameAs> <#Data> . (03)
Or with more specificity: (04)
<#Proposition> <#kindOf> <#Sentence> .
<#Statement> <#kindOf> <#Sentence> .
<#Proposition> <#sameAs> <#Statement> .
<#Proposition> <#sameAs> <#Datum> .
<#Statement> <#sameAs> <#Datum> .
<#Paragraph> <#sameAs> <#Data> . (05)
-- (06)
Regards, (07)
Kingsley Idehen
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile: https://plus.google.com/112399767740508618350/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen (08)
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