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add in RDF dataset definitions from SPARQL query #50

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add in RDF dataset definitions from SPARQL query #50

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78cff60
add in RDF dataset definitions from SPARQL query
pfps Oct 31, 2024
70e6061
remove definition of active graph as it is SPARQL specific
pfps Oct 31, 2024
d1e7f07
fix definition markup
pfps Nov 1, 2024
13842cf
Update spec/index.html
pfps Nov 1, 2024
e6b5e69
Clean up "merge" definition to use the fragment "dfn-rdf-graph-merge"…
gkellogg Nov 2, 2024
52c0fae
Fix duplicate definitions of "RDF dataset".
gkellogg Nov 2, 2024
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46 changes: 46 additions & 0 deletions spec/index.html
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Expand Up @@ -1498,6 +1498,52 @@ <h2>RDF Datasets</h2>
between datasets would require RDF graph entailments between the graphs with the same name
(adding in empty graphs as required).</p>

<table>
<caption>Definition of an RDF dataset</caption>
<tr>
<td class="semantictable">
<p>An <dfn data-cite="RDF12-CONCEPTS#dfn-rdf-dataset" data-lt="dataset">RDF dataset</dfn>
is a set:</p>
{ G, (&lt;u<sub>1</sub>&gt;, G<sub>1</sub>), (&lt;u<sub>2</sub>&gt;, G<sub>2</sub>), . .
. (&lt;u<sub>n</sub>&gt;, G<sub>n</sub>) }<br>
where n&ge;0 and G and each G<sub>i</sub> are graphs, and each &lt;u<sub>i</sub>&gt; is an IRI. Each
&lt;u<sub>i</sub>&gt; is distinct.</p>
<p>G is called the default graph. (&lt;u<sub>i</sub>&gt;, G<sub>i</sub>) are called named
graphs.</p>
</td>
</tr>
</table>

<table>
<caption>Definition of RDF dataset merge</caption>
<tr>
<td class="semantictable">
<p>Let DS1 = { G1, (&lt;u1<sub>1</sub>&gt;, G1<sub>1</sub>), (&lt;u1<sub>2</sub>&gt;,
G1<sub>2</sub>), . . . (&lt;u1<sub>n</sub>&gt;, G1<sub>n</sub>) },<br>
and DS2 = { G2, (&lt;u2<sub>1</sub>&gt;, G2<sub>1</sub>), (&lt;u2<sub>2</sub>&gt;,
G2<sub>2</sub>), . . . (&lt;u2<sub>m</sub>&gt;, G2<sub>m</sub>) }</p>
<p>The <dfn data-lt="RDF dataset merge">RDF dataset merge</dfn> of DS1 and DS2 is:<br>
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DS={ G, (&lt;u<sub>1</sub>&gt;, G<sub>1</sub>), (&lt;u<sub>2</sub>&gt;, G<sub>2</sub>), .
. . (&lt;u<sub>k</sub>&gt;, G<sub>k</sub>) }<br>
where:</p>
<p>Write N1 for { &lt;u1<sub>j</sub>&gt; j = 1 to n }<br>
Write N2 for { &lt;u2<sub>j</sub>&gt; j = 1 to m }<br></p>
<ul>
<li>G is the <a data-cite="RDF12-SEMANTICS#dfn-merge">merge</a> of G1 and G2
</li>
<li>(&lt;u<sub>i</sub>&gt;, G<sub>i</sub>) where &lt;u<sub>i</sub>&gt; is in N1 but not
in N2</li>
<li>(&lt;u<sub>i</sub>&gt;, G<sub>i</sub>) where &lt;u<sub>i</sub>&gt; is in N2 but not
in N1</li>
<li>(&lt;u<sub>i</sub>&gt;, G<sub>i</sub>) where &lt;u<sub>i</sub>&gt; is equal to
&lt;u<sub>j</sub>&gt; in N1 and equal to &lt;u<sub>k</sub>&gt; in N2 and G<sub>i</sub>
is the <a data-cite="RDF12-SEMANTICS#dfn-merge">merge</a> of G1<sub>j</sub> and G2<sub>k</sub>
</li>
</ul>
</td>
</tr>
</table>

</section>

<h2 id="appendices">Appendices</h2>
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