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[p4-feedback] Why max operator doesnt work when min operator works

Samson Tu swt at
Thu Nov 14 17:24:26 PST 2013

The max operator has the same issue as "only fun title" restriction: OWL's open world assumption means a tv series may be unstated years of releases. "Min" works because if a tv series is released in years 1, 2, 3, that's sufficient to prove hasReleaseYear >= 2, but not sufficient to prove hasReleaseYear <  10.

One way to get the max operator to work is to add axioms that explicitly say how many release years a tv series has: TVSeries2343 is an individual of (hasReleaseYear exactly 2).   


On Nov 14, 2013, at 1:52 PM, buksy <jjtusan at> wrote:

> and what about the min & max operator? Why does max operator doesn't work?
> Could you please suggest how to edit ontology to make max operator work?
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