opencompl/lean4
Jan 2025 – May 2025
2 Months active
Languages Used
LeanC++
Technical Skills
Compiler DevelopmentMeta-programmingTheorem ProvingFormal VerificationType Theory
Arthur Adjedj
PROFILE
Arthur Adjedj
Worked on the opencompl/lean4 repository, focusing on enhancing the stability and correctness of Lean4’s core systems. Addressed two critical bugs by refining metadata handling for inaccessible variables in pattern matching and correcting universe level normalization so that imax 1 u normalizes to u. These changes improved the reliability of equational theorem generation and ensured consistent universe computations, directly benefiting downstream math libraries. The work involved C++ and Lean, leveraging skills in compiler development, meta-programming, and type theory. Each fix was accompanied by targeted regression tests and careful adherence to contribution guidelines, emphasizing code quality and long-term maintainability.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
2Total
Bugs
2
Commits
2
Features
0
Lines of code
102
Activity Months2
Your Network
67 peopleWork History
May 2025
1 Commits
May 1, 2025May 2025 monthly summary for opencompl/lean4: Stabilized universe level normalization by delivering a critical bug fix where imax 1 u now normalizes to u, ensuring consistent level computations and addressing related bug reports.
1 Commits
May 1, 2025May 2025 monthly summary for opencompl/lean4: Stabilized universe level normalization by delivering a critical bug fix where imax 1 u now normalizes to u, ensuring consistent level computations and addressing related bug reports.
May 2025
January 2025
1 Commits
Jan 1, 2025January 2025 (2025-01) – Focus: stability and quality in Lean4. The primary deliverable was a bug fix for metadata consumption in inaccessible variables during pattern matching (casesOnStuckLHS) in the opencompl/lean4 repository. This prevents potential failures when generating equational theorems and includes a regression test to verify the fix.
January 2025
1 Commits
Jan 1, 2025January 2025 (2025-01) – Focus: stability and quality in Lean4. The primary deliverable was a bug fix for metadata consumption in inaccessible variables during pattern matching (casesOnStuckLHS) in the opencompl/lean4 repository. This prevents potential failures when generating equational theorems and includes a regression test to verify the fix.
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++Lean
Technical Skills
Compiler DevelopmentFormal VerificationMeta-programmingTheorem ProvingType Theory
Repositories Contributed To
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