Having only a nice paper proof is not enough anymore today to convince
reviewers. Thus the need of formal proofs grows up and the best way to
obtain such a valid proof is using a Proof Assistant.
As a contribution to such Proof Assistants, I'll present the still
unformalized parts of the book: "Types and Programming Languages", that I
intend to formalize. A big effort awaits me, but this will grant other
users access to a collection of nice results related to Program Analysis
and a lot of other fields.
Finally, my goal is also to make you aware of possibilities given by Proof
Assistants, future researchs' topics in this domain and the benefit implied
by progress in this field.