%0 Journal Article %T Standardization and Confluence in Pure Lambda-Calculus Formalized for the Matita Theorem Prover %A Ferruccio Guidi %J Journal of Formalized Reasoning %D 2012 %I University of Bologna %X We present a formalization of pure lambda-calculus for the Matita interactive theorem prover, including the proofs of two relevant results in reduction theory: the confluence theorem and the standardization theorem. The proof of the latter is based on a new approach recently introduced by Xi and refined by Kashima that, avoiding the notion of development and having a neat inductive structure, is particularly suited for formalization in theorem provers. %K lambda calculus %K standardization %K confluence %K matita %K interactive theorem proving %U http://jfr.unibo.it/article/view/3392