At 12:43 13-09-07, Bill Turner wrote:
>ORIGINAL MESSAGE:
>
>On Thu, 13 Sep 2007 12:30:46 -0500, W0UN -- John Brosnahan
><shr@swtexas.net> wrote:
>
> >Maybe another example would help -- this time from the biological world.
> >
> >CLASS = Electricity
> >
> >ORDER = Circuits
> >
> >FAMILY = Grounds
> >
> >GENUS = Single Point Grounds
> >
> >SPECIES = Single Point House Ground,
> > Single Point Tower Ground,
> > Single Point AC Mains Ground
>
>------------ REPLY FOLLOWS ------------
>
>You have illustrated the name issue very well. The problem we're
>having is folks are using the genus when they should be using the
>species.
>
>Clever!
But the correct superset contains the specific subset by definition.
So the superset term is always correct -- even if a subset term
is more precise and illustrative of a specific point. But the converse
is not true. To illustrate this point let me provide an example.
All politicians are crooks! But the converse is not true-- that all
crooks are politicians!
As you can see, I think a current events example might be most
useful when discussing a grounding topic that has the potential
to be confusing.
--John W0UN
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