Possibility, imagination and conception [Possibilidade, imaginação e concepção]

In this paper we investigate the relations between possibility, imagination and conception. We develop a theory according to which these three notions are compatible but independent. This means in particular that none of these notions reduces to another one and that there are things which are:  (1) imaginable but neither possible nor conceivable; (2) conceivable but neither possible nor imaginable; (3) possible but neither imaginable nor conceivable. We first explain our methodology: structuralism, equilibrium between norm and description, prototypical examples. And then we proceed.