Rémy Degenne
Researcher at Inria
Lille, Hauts-de-France
Summary
🤩
Rockstar🎓
Top SchoolRémy Degenne is a researcher and applied mathematician with 11 years of experience bridging formal mathematics, machine learning, and software engineering from institutions like Inria, ENS Paris-Saclay and CWI. He holds advanced training from École Polytechnique, ENS and TU Munich and completed a PhD in applied mathematics/machine learning, bringing rigorous theoretical grounding to practical research problems. At Inria he moved from intern to researcher, combining long-term academic projects with software development skillsets cultivated earlier in industry roles. Rémy contributes to formalized mathematics in the Lean community, notably defining Lp spaces and proving results such as Hölder’s inequality in mathlib3, reflecting deep fluency in both analysis and proof engineering. He is based in Lille and is comfortable operating at the intersection of theorem proving, numerical methods and machine-learning research—an atypical mix that accelerates reproducible, verifiable research code. Colleagues can expect a methodical problem-solver who translates abstract mathematical insight into robust, open-source contributions.
11 years of coding experience
3 years of employment as a software developer
Master's Degree, Computer Science, Master's Degree, Computer Science at Technische Universität München / TU MunichMaster's Degree, Applied Mathematics, Computer Vision, Machine Learning, Master's Degree, Applied Mathematics, Computer Vision, Machine Learning at École Normale Supérieure de CachanDoctor of Philosophy (PhD), Machine Learning, Doctor of Philosophy (PhD), Machine Learning at École Normale Supérieure Paris-SaclayEcole polytechniqueDoctor of Philosophy (Ph.D.), Applied Mathematics, Doctor of Philosophy (Ph.D.), Applied Mathematics at Université Denis Diderot (Paris VII)
French, German, English
Github Skills (3)
proof10
proofs10
leanback10
Programming languages (5)
Github contributions (5)
leanprover-community/mathlib3
Nov 2020 - Jan 2023
Lean 3's obsolete mathematical components library: please use mathlib4
Role in this project:
Back-end Developer
Back-end DeveloperContributions:618 reviews, 585 commits, 201 PRs in 2 years 2 months
Contributions summary:Rémy contributed to the mathematical components library, mathlib3, by defining and working on Lp spaces and associated properties. They defined the space Lp of functions and its seminorm, and proved several lemmas related to this definition, including that negation, addition, and scalar multiplication are in Lp. Furthermore, they added Hölder's inequality for the Lebesgue integral of ennreal and nnreal functions. The user's work involved defining core mathematical concepts and proving related theorems.
maththeorem-provingcomponents-librarymathematicsjavascript
RemyDegenne/testing-lower-bounds
Feb 2024 - Mar 2025
Information theory and hypothesis testing, in Lean
Contributions:169 reviews, 226 PRs, 811 pushes in 1 year 1 month
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