Xavier Leroy Alive
Leads OCaml at INRIA and proved a whole C compiler correct — the CompCert project.
1960198020002020
Created OCaml
Led OCaml's development at INRIA — wrote the native-code compiler — and proved a formally-verified C compiler (CompCert) could exist.\n\nThe most accomplished academic language implementer: OCaml, CompCert, and the Gallina work on Coq.