This document provides an overview of RDF semantics. It defines semantics as the study of meaning in communication and models as linking intensional and extensional meaning. It discusses RDF syntax as triples and graphs. It then defines simple interpretation and semantic conditions for RDF graphs. Finally, it defines RDFS vocabulary and semantic conditions for RDFS, including domains, ranges, and subclass/subproperty relationships.
This document provides an overview of RDF semantics. It defines semantics as the study of meaning in communication and models as linking intensional and extensional meaning. It discusses RDF syntax as triples and graphs. It then defines simple interpretation and semantic conditions for RDF graphs. Finally, it defines RDFS vocabulary and semantic conditions for RDFS, including domains, ranges, and subclass/subproperty relationships.
Here are proofs for the tautologies using RDFS semantics:
1. rdfs:subPropertyOf rdfs:subPropertyOf rdfs:subPropertyOf
- By definition, if P rdfs:subPropertyOf Q then IEXT(P) ⊆ IEXT(Q)
- So if P rdfs:subPropertyOf R and R rdfs:subPropertyOf S then IEXT(P) ⊆ IEXT(R) ⊆ IEXT(S), hence P rdfs:subPropertyOf S
2. rdfs:domain rdfs:domain rdf:Property
- By definition, the domain of rdfs:domain is rdf:Property
3. rdfs:domain rdfs:range rdf:Class
This document provides documentation on the python-graph-lovestory library for working with graph databases in Python. It includes an overview of the Blueprints API, which allows using different graph databases with the same API, and examples of creating a graph and modeling a wiki with pages and revisions. It also demonstrates how to create vertices, edges, indexes and navigate the graph.
Here are proofs for the tautologies using RDFS semantics:
1. rdfs:subPropertyOf rdfs:subPropertyOf rdfs:subPropertyOf
- By definition, if P rdfs:subPropertyOf Q then IEXT(P) ⊆ IEXT(Q)
- So if P rdfs:subPropertyOf R and R rdfs:subPropertyOf S then IEXT(P) ⊆ IEXT(R) ⊆ IEXT(S), hence P rdfs:subPropertyOf S
2. rdfs:domain rdfs:domain rdf:Property
- By definition, the domain of rdfs:domain is rdf:Property
3. rdfs:domain rdfs:range rdf:Class
This document provides documentation on the python-graph-lovestory library for working with graph databases in Python. It includes an overview of the Blueprints API, which allows using different graph databases with the same API, and examples of creating a graph and modeling a wiki with pages and revisions. It also demonstrates how to create vertices, edges, indexes and navigate the graph.