Online research in philosophy

The use of a concept called "explicativity", for (provisionally) accepting a theory or Hypothesis H, has previously been discussed. That previous discussion took into account the prior probability of H, and hence implicitly its theoretical simplicity. We here suggest that a modification of explicativity is required to allow for what may be called the pragmatic simplicity of H, that is, the simplicity of using H in applications as distinct from the simplicity of the description of H.

The authors develop precise statements of the conditions under which there are nonexistent objects and of the conditions under which any two such objects are identical. Essentially, for any describable condition on properties, there is a nonexistent object which includes (but doesn't necessarily exemplify) just the properties satisfying the condition. The logic of inclusion is developed in detail. It is shown how these nonexistent objects can serve as the denotations of the names of fictional characters.