Issue involving Descriptive ICE and several of its subclasses

[gregfowlerphd]

According to the definition for Descriptive ICE, such an ICE ‘consists of a set of propositions’. However, according to the definition for Point Estimate Measurement ICE (which is one of the subclasses of Descriptive ICE), such an ICE ‘consists of a single value’. Thus, a Point Estimate Measurement ICE must both consist of a set of propositions and consist of a single value. For this to be possible, though, either a value must be a set of propositions (which seems false) or it must be possible for something to consist of a set of propositions while also, separately, consisting of a single value (which seems impossible). Hence, given the definitions and the asserted subclass relation, Point Estimate Measurement ICE seems to be an unsatisfiable class.

Analogous remarks apply with respect to several other subclasses of Descriptive ICE. (I can post a list if desired.) Furthermore, a related issue arises in the case of Proportional Ratio Measurement ICE. Its definition indicates that a Proportional Ratio Measurement ICE has a numerator and a denominator. However, it would seem that no set of propositions can have a numerator or a denominator.

The simplest fix for these issues might be to simply remove the reference to a set of propositions from the definition for Descriptive ICE:

An Information Content Entity that describes some Entity.