 - as a point of fact, something actually easy to
&gt;check, these terms (and the distinctions they describe) are not normally
&gt;regarded as obsolete. One can find them in most of the recent introductory

&gt;textbooks on metaphysics.

Let's put it this way:  There is an awful lot of obsolete
philosophy being written today.  I regard any book on philosophy
that does not mention C. S. Peirce to be obsolete.  Peirce is
much more up-to-date than 90% of the metaphysics that was
written during the 20th century