The table 'Interpretation of Axioms and Facts' [1] has an unbound
variable c in the right-hand column of the rows for the DatatypeProperty
and ObjectProperty constructs, in the condition
<S(c),S(owl:DeprecatedProperty)> \in ER(rdf:type)
I suspect it should be a p, as in
<S(p),S(owl:DeprecatedProperty)> \in ER(rdf:type)
Looks like a copy-and-paste error to me.
[1]
http://www.w3.org/TR/owl-semantics/direct.html#3.3--
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