Knowledge Spaces, Practical Knowledge and Possible Worlds

The purpose of this paper is to understand the significance of Knowledge Spaces. To that end, I shall analyse the relation between the knowable and the notion of possible worlds. In the first part, I shall give a brief characteristic of what should be understood by science, rationality, practical knowledge and knowledge spaces. I then describe the practical problems y their relation to knowledge spaces. In the second part, I shall briefly analyse and make explicit the limits, virtues and requirements of the primary notion of Lewis' Possible Worlds. I shall examine the conditions of the possibility of a world and suggest finally the epistemic outlining that should be taken into account and made explicit when talking of and from a possible world while expressing a statement.