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SUO: 20 May 2002 -- Questions About SUMO Set Theory




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SUMO Queries 1, 2, 3

SUMO Team,

1.  What is the exact formulation of set theory used in SUMO?

Comment.  When I tried to trace this information I was led through
the following sequence of links, not counting dead ends and loops.

a.  http://suo.ieee.org/
b.  http://ontology.teknowledge.com/
c.  http://ontology.teknowledge.com/rsigma/annotatedHistory.html
d.  http://www-ksl.stanford.edu/knowledge-sharing/kif/
e.  http://www-ksl.stanford.edu/knowledge-sharing/ontologies/html/kif-sets/

Page (d) contains the remark that the set ontology that is supposed to be
"built into KIF" is "a version of Von Neumann/Bernays/Godel set theory".

2.  Can you provide a reference and a justification for this assertion?

3.  Can you provide a detailed account and a justification of
    the differences, if any, between the SUMO set theory and
    standard versions of Von Neumann/Bernays/Godel set theory?

Thanks In Prospect,

Jon Awbrey

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