groups etc.
&gt;as
&gt;a new category of things. This is unattractive for reasons of ontological
&gt;economy (if you like parsimony).
&gt;Matthew chose option 2. But I am not aware of a sufficiently fine
&gt;distinction here between different kinds of parts. The members of a
&gt;football
&gt;team seem to be privileged parts in a way in which the parts of a car are
&gt;not. We tend to think of sets having members with a common characteristic,
&gt;this is true of collections. We tend to think of a wholes' par