zhengj2007 / bfo-export

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Current definition of independent continuant would have some GDCs be independent continuants. #181

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago
DEFINITION: b is an independent continuant = Def. b is a continuant which is 
such that there is no c and no t such that b s-depends_on c at t. [017-002]

ELUCIDATION: b g-depends on c at t1 means: b exists at t1 and c exists at t1 
& for some type B it holds that 
(c instantiates B at t1) 
& necessarily, for all t (if b exists at t then some instance_of B exists at t) 
& not (b s-depends_on c at t1). [072-002]

Definition: b is a generically dependent continuant = Def. b is a continuant 
that g-depends_on one or more other entities. [074-001]

Since we can have GDCs that at no time s-depend on something, such GDCs would 
also be independent continuants, violating the intention of mutual disjointness 
of siblings.

Barry proposes modifying the definition of independent continuant as follows:

b is a continuant which is such that there is no c and no t such that b 
s-depends_on c at t and there is no d and no t such that b g-depends-on d at t.

I propose that we remove independent continuant from BFO. I will detail the 
rationale in the next issue.

Original issue reported on code.google.com by alanruttenberg@gmail.com on 24 Jul 2013 at 3:24