Abstract

This chapter examines Bunge’s distinction between the logical concept of existence and the ontological one. We introduce a new conceptual existence predicate in an intensional environment that depends on the evaluation world. So that we can investigate restricted areas where the different kinds of concepts might exist. We hope this new predicate would encompass Bunge’s philosophical position which he designates as conceptualist and fictional materialism. The basic hybridization acts as a bridge between intensions and extensions because @ works as a useful rigidifier. In hybrid logic, the accessibility relation and many properties this relation might have can be easily expressed in the formal language. The initial hypothesis is that hybridization and intensionality can serve as unifying tools in the areas involved in this research; namely, Logic, Philosophy of Science and Linguistics.