2.2 rdfs:Class

[riannella]

This definition:

This is the class of resources that are RDF classes. rdfs:Class is an instance of rdfs:Class.

seems circular?

What is an "RDF Class" ?

What are the concept of classes ?

[domel]

Please have a look at https://www.w3.org/2000/01/rdf-schema#:

rdfs:Class a rdfs:Class ;
	rdfs:isDefinedBy <http://www.w3.org/2000/01/rdf-schema#> ;
	rdfs:label "Class" ;
	rdfs:comment "The class of classes." ;
	rdfs:subClassOf rdfs:Resource .

[riannella]

W3C specs are the normative (not the ttl files)

The OWL2 Primer says "In OWL 2, we denote objects as individuals, categories as classes and relations as properties."

So is an RDF Class ...a class that represent categories of resources

[domel]

I guess I don't understand where you see the error in this fragment. What do you think this fragment should sound like?
Note that, owl:Class is not the same as rdfs:Class.

[TallTed]

@riannella — I suggest you read section 2. Classes.

It might make sense for the WG to rearrange the prose of this document, such that the subsections like 2.2 rdfs:Class contain all relevant descriptive text which is currently in the leading paragraphs of that 2. Classes section.

[riannella]

@TallTed Agree...some of the section 2 text should be more normative in the subsections.

@domel It would be ever greater if W3C could document the difference between rdfs:Class and owl:Class
:-)

[riannella]

Some thoughts...
"Resources may be divided into groups called classes. "

Can we explain what this "division" is based on? Similar characteristics of the Resources?

"The members of a class are known as instances of the class"

Can we then say that the "Membership" means that the instances share the same characteristics of the class (and each other)?