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Define terms for basic RDF 1.2 #70

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29aeb33
Update definition of rdfs:Proposition
niklasl Dec 1, 2025
a398dc6
Define rdf:TripleForm and its component properties
niklasl Dec 1, 2025
68c1f83
Declare rdfs:Proposition as subclass of rdf:TripleForm
niklasl Dec 1, 2025
b9b8699
Rename triple form to proposition form
niklasl Dec 5, 2025
5d028f4
Add proposition form terms to the vocabulary registry
niklasl Dec 5, 2025
31a2fa9
Update description of rdfs:Proposition
niklasl Dec 5, 2025
2e45639
Clarify comments about the properties of proposition forms
niklasl Dec 11, 2025
7b722ec
Use the definition of proposition as given in RDF Concepts
niklasl Dec 11, 2025
d8dab55
Apply suggestions from code review
niklasl Dec 15, 2025
75a5ee1
Update proposition comment
niklasl Dec 17, 2025
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31 changes: 31 additions & 0 deletions ns/rdf.ttl
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Expand Up @@ -167,6 +167,37 @@ rdf:direction a rdf:Property ;
rdfs:isDefinedBy <http://www.w3.org/1999/02/22-rdf-syntax-ns#> ;
rdfs:seeAlso <https://www.w3.org/TR/json-ld11/#the-rdf-compoundliteral-class-and-the-rdf-language-and-rdf-direction-properties> .

rdf:PropositionForm a rdfs:Class ;
rdfs:label "PropositionForm" ;
rdfs:comment "The class of abstract, atomic proposition forms. Reserved for basic encoding of propositions." ;
rdfs:subClassOf rdfs:Resource ;
rdfs:isDefinedBy <http://www.w3.org/1999/02/22-rdf-syntax-ns#> ;
rdfs:seeAlso <https://www.w3.org/TR/rdf12-interop/> .

rdf:propositionFormSubject a rdf:Property ;
rdfs:label "propositionFormSubject" ;
rdfs:comment "The subject component of a proposition form. Reserved for basic encoding of propositions." ;
rdfs:domain rdf:PropositionForm ;
rdfs:range rdfs:Resource ;
rdfs:isDefinedBy <http://www.w3.org/1999/02/22-rdf-syntax-ns#> ;
rdfs:seeAlso <https://www.w3.org/TR/rdf12-interop/> .

rdf:propositionFormPredicate a rdf:Property ;
rdfs:label "propositionFormPredicate" ;
rdfs:comment "The predicate component of a proposition form. Reserved for basic encoding of propositions." ;
rdfs:domain rdf:PropositionForm ;
rdfs:range rdf:Property ;
rdfs:isDefinedBy <http://www.w3.org/1999/02/22-rdf-syntax-ns#> ;
rdfs:seeAlso <https://www.w3.org/TR/rdf12-interop/> .

rdf:propositionFormObject a rdf:Property ;
rdfs:label "propositionFormObject" ;
rdfs:comment "The object component of a proposition form. Reserved for basic encoding of propositions." ;
rdfs:domain rdf:PropositionForm ;
rdfs:range rdfs:Resource ;
rdfs:isDefinedBy <http://www.w3.org/1999/02/22-rdf-syntax-ns#> ;
rdfs:seeAlso <https://www.w3.org/TR/rdf12-interop/> .

## Controlled vocabulary for versions.
## URIs for versions of RDF and SPARQL
## The rdfs:label corresponds to the constant defined in RDF Concepts.
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3 changes: 2 additions & 1 deletion ns/rdfs.ttl
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Expand Up @@ -14,7 +14,8 @@ rdfs:Resource a rdfs:Class ;
rdfs:Proposition a rdfs:Class ;
rdfs:isDefinedBy <http://www.w3.org/2000/01/rdf-schema#> ;
rdfs:label "Proposition" ;
rdfs:comment "An atomic, logical, abstract proposition." .
rdfs:comment "The class of propositions, simple logical expressions describing a relationship between two entities." ;
rdfs:subClassOf rdfs:Resource .

rdfs:Class a rdfs:Class ;
rdfs:isDefinedBy <http://www.w3.org/2000/01/rdf-schema#> ;
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10 changes: 8 additions & 2 deletions spec/index.html
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Expand Up @@ -866,8 +866,10 @@ <h2>Triple-term based reification</h2>

<section id="ch_proposition">
<h3><code>rdfs:Proposition</code></h3>
<p><code>rdfs:Proposition</code> is the class of reified triples.
<code>rdfs:Proposition</code> is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>.</p>
<p><code>rdfs:Proposition</code> is the class of propositions, simple logical expressions describing a relationship between two entities.
<code>rdfs:Proposition</code> is an instance of <a href="#ch_class"><code>rdfs:Class</code></a>
and a <a href="#def-subclass">subclass</a> of <a href="#ch_resource"><code>rdfs:Resource</code></a>.</p>
</p>
</section>
<section id="ch_reifies">
<h3><code>rdf:reifies</code></h3>
Expand Down Expand Up @@ -1546,6 +1548,10 @@ <h3><code>rdf:</code> Namespace</h3>
<tr><td><code>rdf:language</code></td><td>[[JSON-LD11]]</td><td>Consideration should be given to the use of <code>rdf:dirLangString</code>. This term is considered archaic but retained for compatibility with JSON-LD.</td></tr>
<tr><td><code>rdf:PlainLiteral</code></td><td>[[RDF-PLAIN-LITERAL]]</td><td>Only used in OWL [[OWL2-OVERVIEW]]</td></tr>
<tr><td><code>rdf:langRange</code></td><td>[[RDF-PLAIN-LITERAL]]</td><td>Only used in OWL [[OWL2-OVERVIEW]]</td></tr>
<tr><td><code>rdf:PropositionForm</code></td><td>[[RDF-INTEROP]]</td><td>Reserved for basic encoding of propositions.</td></tr>
<tr><td><code>rdf:propositionFormSubject</code></td><td>[[RDF-INTEROP]]</td><td>Reserved for basic encoding of propositions.</td></tr>
<tr><td><code>rdf:propositionFormPredicate</code></td><td>[[RDF-INTEROP]]</td><td>Reserved for basic encoding of propositions.</td></tr>
<tr><td><code>rdf:propositionFormObject</code></td><td>[[RDF-INTEROP]]</td><td>Reserved for basic encoding of propositions.</td></tr>
</tbody>
</table>

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