Introduction to Linear Logic and Sequent Calculus Prof. Roberto Di Cosmo, Prof. Delia Kesner Content: Linear Logic is now only 15 years old, but it has already had a very significant impact on many fields of Computer Science, as well as in Linguistics. By banning the weakening and contraction rules from the base logical system, it provides a logical system where propositions are handled like valuable resources, instead of immutable facts, and can then give a direct logical account of phenomena that were, before Linear Logic, imperfectly handled by heavy encodings in first order logic. In this short course, we will present the Linear Logic system, its origin and motivations, its connections to Lambda Calculus, Optimal Reduction, Explicit Substitutions and Game Semantics, as well as some hints of its usefulness in Linguistics. Course material: we will base our course material on the graduate course notes which are available from the web page http://www.dicosmo.org