Existential Commitment In Logic
Abstract
The aim of the paper is to consider some questions concerning the role of concept of existence in formal logic, especially the question whether the existence is a logical category. In the first step, I discuss the problem from the point of view of the classical logic. In this context I consider the issue whether empty names may appear as substitutions in logical propositions. Then I consider the function of the concept of existence in logic from a broader perspective, namely in the light of the classical theory of truth, as well as from a meta-theoretical perspective on the relationship between logic and ontology. Since the notions of existence and truth seem to me to play an indispensable role in logic, I argue in favour of the existential understanding of logic.Key words LOGIC, EXISTENCE, NAME, TRUTH