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
Arthur Adjedj contributed to the opencompl/lean4 repository by focusing on stability and correctness in Lean4’s core systems. He addressed two complex bugs, first resolving metadata consumption for inaccessible variables during pattern matching, which improved the reliability of equational theorem generation. Later, he fixed a universe level normalization issue, ensuring that imax 1 u now normalizes to u, which stabilized level computations for downstream math libraries. His work involved deep compiler development, meta-programming, and formal verification, primarily using C++ and Lean. Each fix included targeted regression tests, reflecting a careful, quality-driven approach to maintaining Lean4’s internal consistency.
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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