Yury Kudryashov
Formalization Lead
College Station, Texas, United States
Summary
🤩
Rockstar🎓
Top SchoolYury Kudryashov is a Formalization Lead with 19 years of experience bridging deep mathematical research and practical formal methods, currently leading formalization efforts at Harmonic in College Station, Texas. He holds a PhD in Mathematics and has held academic positions at institutions including Texas A&M, University of Toronto, and Cornell, bringing rigor from academia into software engineering. An active contributor to the Lean theorem prover ecosystem, he has implemented tactics and algebraic lemmas in the widely used mathlib and helped refactor core algebraic infrastructure. Yury’s background in differential equations and dynamical systems informs his precise, proof-oriented approach to building reliable formal tools. Colleagues rely on him for translating complex mathematical ideas into maintainable, provable code that accelerates trustworthy AI development.
18 years of coding experience
9 years of employment as a software developer
Doctor of Philosophy (PhD), Mathematics, Doctor of Philosophy (PhD), Mathematics at Ecole normale supérieure de LyonLomonosov Moscow State University
Английский, Французский
Github Skills (15)
structures10
mathematics10
data-structures10
slim10
struct10
theorem-proving10
t410
formal-verification10
math10
algebra10
data-structure10
logic9
symbolic-logic9
logical9
functional-programming8
Programming languages (11)
Github contributions (5)
leanprover-community/mathlib3
May 2019 - Jan 2023
Lean 3's obsolete mathematical components library: please use mathlib4
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1728 reviews, 4047 commits, 2132 PRs in 3 years 8 months
Contributions summary:Yury primarily focused on the mathematical components library of the Lean 3 proof assistant. Contributions include implementing new mathematical functions and theorems within the project, such as pairwise relations. The commits demonstrate improvements to existing proofs, adding new lemmas for data structures like lists and functions, and reviewing and updating APIs. The user's work involved modifications to code related to mathematical definitions.
maththeorem-provingcomponents-librarymathematicsjavascript
leanprover-community/mathlib4
Jul 2022 - Jan 2023
The math library of Lean 4
Role in this project:Back-end Developer
Back-end DeveloperContributions:1608 reviews, 90 commits, 1557 PRs in 6 months
Contributions summary:Yury contributed to the math library of Lean 4 by implementing new tactics and features related to mathematical structures. Their work included implementing the `infer_opt_param` tactic, which closes goals with default values, and adding lemmas concerning mathematical objects like `Sum`, `ULift`, and `Quot`. Furthermore, the user was involved in refactoring code using `IsLeftCancelMul`, and `Is*CancelMulZero`, indicating a focus on improving the algebraic aspects of the library.
maththeorem-provingcomputer-algebra-systemmathematicsin-progress
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