Sandra M. López – Addressing logical omniscience by means of non-normal worlds semantics

Logic Supergroup Early Career Researcher Workshop 14–15 October, 2021 Sandra M. López (University of Salamanca, Spain) “Addressing the problem of logical omniscience by means of non-normal worlds semantics“ The analysis of knowledge, belief or information by means of modal logic’s possible worlds semantics is widely generalised. However, one major complaint against this approach is that this kind of semantics is committed to an excessively idealized picture of human reasoning. This view has come to be known as the problem of logical omniscience. One possible way to address such issues is via the techniques of non-classical logics with non-normal worlds semantics. In this talk, we will focus on the ternary relational semantics, a semantics which was initially developed by Routley and Meyer to model relevant logics but has been shown to be a versatile tool, capable of modelling different kinds of logics (such as many-valued, paraconsistent or intuitio