Jean-Yves Beziau (University of Brazil and Visiting Professor UCSD)
Abstract. Complexity, as many notions, is understood by opposition to another notion, simplicity. In this talk we will try to go beyond this dichotomic opposition using the theory of the square of opposition, a simple theory that can fruitfully be used to understand complex situations. We will start by explaining this theory, in particular by giving a variety of examples, and then we will show how it can usefully be applied to give a good understanding of what complexity is.