It is my intention in this article to present some consequences of Quine’s thesis on
the dependence of ontology on ideology (Quine, 1980), seeking an argument for my
own thesis on the dependence (theoretical) existence of entities on identity type or
ontology dependence on logic and language.If Quine's thesis is correct, then we can
expand the resolution of this conclusion and say that ontology depends on the
identity or on identification of the "identity criteria for conceptual schemes"
(Davidson, 2001) which is constructed in the theory. Consequently I will speak
about types of identity which adapts choice of ontology and of which depends
ontology of a theory. Here I want to connect the different types of use of the term
identity in Aristotle's writings and the different types of predications that are based
on them with the concept of identity as the equivalence of symbols in modern logic.
I want to reinterpret Quine's statement: "There is no entity without identity " in the
form of imlication "What (kind of) identity such (kind of ) entity."