Re: [ontology-summit] [ontolog-forum] Estimating number of all known fac

[Tara Athan <taraathan@xxxxxxxxx>]

Fact examples:

1. The earth revolves around the sun.

The earth, sun and everything else "in" the solar system follow paths around the center of mass of the system, which is itself revolving about the center of mass of the galaxy. Because the sun is more massive than everything else in the solar system, for some purposes the model consisting of a stationary sun and an earth which revolves around it is a useful model.

If "The earth revolves around the sun." is a fact, then facts are at best models of reality. Models are only "true" when they pertain solely to abstract concepts such as mathematics or other fiat systems.

Tara

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