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SUO: Where are the axioms that establish the condition of a class ?




The documentation of Class contains the following specification:

     ... Classes typically have an associated `condition'
     that determines the instances of the Class.

Yet I can find no axioms in SUMO that implements these conditions.  In
particular I'm looking for the axiom of inheritance which informally might
read something like:

     If ClassB is a subclass of ClassA,
     and all instances of ClassA have property P,
     then all instances of ClassB have property P.

The mentograph of this is
http://robustai.net/mentography/inheritance.gif

Apologies in advance if I missed it.

Seth Russell