Abstract
The supposition that Wittgenstein's Tractatus advances a certain metaphysics has
given rise to a controversy over the ontological status of his Tractarian objects. It has been
debated, for instance, whether these objects consist only of particulars or of both particulars
and universals; whether they are physical, phenomenal, or phenomenological entities;
and whether they correspond to Russell's objects of acquaintance or Kant's phenomena
and substance. In this essay, I endorse Ishiguro's view that these objects, being formal
concepts, are ontologically neutral and thus are not identifiable with any ontological kind
of entities. I elaborate on the coherence of this view with the propositional dependence
of the meaning of Tractarian names. After showing why some arguments for ascribing a
Russellian theory of meaning to these names do not work, I demonstrate why Ishiguro's account of Tractarian objects and names provides a better explanation of the unalterability of
these objects.