Quantificatori ed Esistenza

The present essay deals with the Frege-Quine’s quantificational theory of existence. The analysis expounds both the reasons that lay at the basis of the theory, and those that highlight its limitations in the domains of metaphysics and of modal semantics. The outcome of this analysis consists in proposing to introduce, besides quantifiers – whose function is to declare the existence of objects in general (however they may be: abstract, concrete, possible, ideal,...) – an existence predicate that plays the role of expressing the actualisation of that which is in potence.