keywords in LightRoom

P. J. Alling webstertwentysix at
Wed Oct 7 14:47:38 EDT 2009

Doug Brewer wrote:
> Graydon wrote:
>> On Tue, Oct 06, 2009 at 06:39:18PM -0400, Doug Franklin scripsit:
>>> Graydon wrote:
>>>> Yeah, but I got taught data structures by a graph theorist, and we did
>>>> graphs, acyclic graphs, directed graphs, and then acyclic directed
>>>> graphs, so my brain thinks the acyclic is a special case of directed,
>>>> rather than the other way around.
>>> That taxonomy is not acyclic. :-)
>> Behold the weakness of adjectives! :)
>>> [Directed and acyclic are orthogonal characteristics when applied 
>>> to  graphs.  A graph may be either, neither, or both.]
>> Sure.  And strictly, strictly, "directed" and "acyclic" both modify
>> "graph", rather than each other, so the phrases are completely
>> equivalent, only you'd have to be a grammar robot to read it that way,
>> which is why a native speaker doesn't think "directed acyclic graph" and
>> "acyclic directed graph" sound like necessarily the same thing.
>> Which is how I got into this particular excavation in the first place,
>> and I should stop digging. :)
>> -- Graydon
> am I the only one who kept having my brain read this exchange as about 
> acrylic graphs and longing for the good old days of oil-based?
Only after I started drinking heavily.


The free man owns himself. He can damage himself with either eating or drinking; he can ruin himself with gambling. If he does he is certainly a damn fool, and he might possibly be a damned soul; but if he may not, he is not a free man any more than a dog.

	--G. K. Chesterton

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