logsem/clutch
Apr 2025 – Jan 2026
4 Months active
Languages Used
Coq
Technical Skills
Formal VerificationFunctional ProgrammingProof EngineeringType TheoryProbabilistic Programmingdifferential privacy
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PROFILE
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Worked on the logsem/clutch repository, delivering formal verification features and theoretical enhancements for probabilistic and privacy-preserving systems. Over four months, developed formalizations of pure expressions, completeness proofs, and new lemmas to strengthen correctness guarantees, particularly in the Eris and tachis modules. Focused on code quality through targeted refactoring and cleanup, improving maintainability without altering core logic. Extended the differential privacy framework by introducing DP coupling lemmas for mapped distributions, supporting robust privacy analysis. Leveraged Coq for proof engineering, functional programming, and theorem proving, consistently emphasizing correctness, maintainability, and the advancement of formal methods in probabilistic programming and privacy frameworks.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
7Total
Bugs
0
Commits
7
Features
4
Lines of code
3,625
Activity Months4
Your Network
8 peopleShared Repositories
8
Alex BaiMember
Alejandro AguirreMember
Simon GregersenMember
Hei LiMember
heiliMember
Joseph TassarottiMember
Philipp G. HaselwarterMember
Simon GregersenMember
Work History
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for logsem/clutch: Focused on delivering theoretical enhancements to the extended differential privacy framework, with practical implications for privacy guarantees in probabilistic systems. Implemented two commits introducing DPcoupl_map_inv lemmas for mapped distributions, strengthening the DP coupling guarantees and providing a more robust basis for privacy analysis in downstream components.
2 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for logsem/clutch: Focused on delivering theoretical enhancements to the extended differential privacy framework, with practical implications for privacy guarantees in probabilistic systems. Implemented two commits introducing DPcoupl_map_inv lemmas for mapped distributions, strengthening the DP coupling guarantees and providing a more robust basis for privacy analysis in downstream components.
January 2026
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for logsem/clutch focusing on reliability and formal verification of Eris’ total result correctness in the pure_complete module. Delivered improvements strengthen the total Eris result through new lemmas and definitions, supported by code refactors and new proofs related to probabilistic computations and program execution. No separate critical bug fixes reported this month; effort centered on correctness guarantees and proof coverage.
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for logsem/clutch focusing on reliability and formal verification of Eris’ total result correctness in the pure_complete module. Delivered improvements strengthen the total Eris result through new lemmas and definitions, supported by code refactors and new proofs related to probabilistic computations and program execution. No separate critical bug fixes reported this month; effort centered on correctness guarantees and proof coverage.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025: Focused on code quality and maintainability for the logsem/clutch project. Delivered targeted refactor and code cleanup with no behavioral changes, reducing future maintenance risk while preserving core proof logic and functionality.
2 Commits • 1 Features
Jun 1, 2025June 2025: Focused on code quality and maintainability for the logsem/clutch project. Delivered targeted refactor and code cleanup with no behavioral changes, reducing future maintenance risk while preserving core proof logic and functionality.
June 2025
April 2025
2 Commits • 1 Features
Apr 1, 2025In April 2025, delivered formalization of pure expressions and completeness proofs for the logsem/clutch project (eris/tachis). Key work includes introducing module ast_pure.v to define and prove is_pure for expressions and values, with a proven equivalence to the computational interpretation; added a completeness rule for tachis focused on pure expressions; and refactoring with supporting lemmas around purity to improve correctness and time-bound reasoning. Commits illustrating progress: eee8948f90389ef24f41bf8fdb9cb975a6129d08 (added ast_pure for eris) and 953baa2cc891bd47cd31fef5e5e592136036575a (ert completeness rule for tachis).
April 2025
2 Commits • 1 Features
Apr 1, 2025In April 2025, delivered formalization of pure expressions and completeness proofs for the logsem/clutch project (eris/tachis). Key work includes introducing module ast_pure.v to define and prove is_pure for expressions and values, with a proven equivalence to the computational interpretation; added a completeness rule for tachis focused on pure expressions; and refactoring with supporting lemmas around purity to improve correctness and time-bound reasoning. Commits illustrating progress: eee8948f90389ef24f41bf8fdb9cb975a6129d08 (added ast_pure for eris) and 953baa2cc891bd47cd31fef5e5e592136036575a (ert completeness rule for tachis).
Activity
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Quality Metrics
Correctness98.6%
Maintainability88.6%
Architecture91.4%
Performance77.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
Coq
Technical Skills
Formal VerificationFunctional ProgrammingProbabilistic ProgrammingProof EngineeringType Theorydifferential privacyformal verificationprobabilistic programmingproof assistanttheorem proving
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