[Taxacom] Semantic Web: What is a species?

J. Kirk Fitzhugh kfitzhugh at nhm.org
Fri Jan 30 16:25:24 CST 2009

Actually, facts stand separate from observation statements. Observation 
statements, as subject-predicate relations, are represented in a data 
set. Observation statements don't become anything different.

Total evidence only comes into play when one addresses the explanatory 
relevance of one set of observation statements to another set.

Richard Zander wrote:
> My point is that a datum, though a fact, becomes something different in
> the context of a data set. The set assumes the fact is part of the set,
> yet the original rejection of a particular datum as not taxonomically
> relevant (at higher taxonomic levels) by an alpha taxonomist is ignored
> by assuming the datum is unlinked. 
J. Kirk Fitzhugh, Ph.D.
Curator of Polychaetes
Invertebrate Zoology Section
Research & Collections Branch
Natural History Museum of Los Angeles County
900 Exposition Blvd
Los Angeles CA 90007
Phone: 213-763-3233
FAX: 213-746-2999
e-mail: kfitzhug at nhm.org

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