Concept alignment in Logipedia Logipedia is an on line encyclopedia of formal proofs, in various theories expressed in the lambda-Pi-calculus modulo theory. When a user downloads a proof from Logipedia to her own system, she does not want to redefine the basic concepts, such as the notions of natural number or of addition, but instantiate the Logipedia concepts with those of her own system, that is see a proof as a functor that applies to a set of definitions. Advisor: Gilles Dowek Bibliography: T. Zimmermann and H. Herbelin, Automatic and Transparent Transfer of Theorems along Isomorphisms in the Coq Proof Assistant. CICM 2015.