not these points.

If they are terms of art in phil. ont., then we should start
by asking what problems that have practical consequences they
were designed to solve.
 
&gt;&gt; It is plain that commonsense objects *persist* through time.
&gt;&gt; The question is how to explain this (and so, at least partly,
&gt;&gt; explain a number of other things).  One answer is that these
&gt;&gt; objects *perdure* through time -- so only a (temporal) part is
&gt;&gt; present at any one time.  Another answer is to say t