Isidora Stojanovic (Jean Nicod Institute Paris) gives a lecture (first session) at the Summer School on Mathematical Philosophy for Female Students (26 July - 1 Agusut, 2015) titled "Context-dependence and the Semantics-Pragmatics Interface". Abstract: Context-dependence is ubiquitous not only in language, but in cognition and action more generally. In the first part of the course, we shall introduce two basic tools from formal semantics (and pragmatics) that help understanding how the truth of a statement may depend on the context: on the one hand, the notion of presupposition, and on the other, possible world semantics, with its extensions and applications to modality, tense and doxastic expressions. In the second part, we shall use these tools to address a range of issues at the semantics-pragmatics interface, such as the relationship between alethic, deontic and epistemic modals, or the context-sensitivity of knowledge attributions and belief reports.