In this section we formalize the meaning of the modeling primitives of RDF
and RDF Schema. Thus we capture the semantics of RDF and RDFS.
The formal language we use is predicate logic, universally accepted as the
foundation of all (symbolic) knowledge representation. Formulas used in the
formalization are referred to as axioms.
By describing the semantics of RDF and RDFS in a formal language like
logic we make the semantics unambiguous and machine accessible. Also, we
provide a basis for reasoning support by automated reasoners manipulating
logical formulas.