nipkow/AIST
Apr 2025 – Jul 2025
2 Months active
Languages Used
Isabelle/HOL
Technical Skills
Formal VerificationLogicTheorem ProvingAbstract Algebra
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PROFILE
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Aleksy Idzikowski enhanced formal verification for linear systems in the nipkow/AIST repository by introducing a more intuitive solution-checking formulation, is_sols3, and rigorously proving its equivalence to the existing is_sols predicate. He made is_sols exhaustive, clarifying and strengthening correctness guarantees for solution verification. In subsequent work, Aleksy completed the core Gauss-Jordan elimination proof, adding the dot_map2_plus lemma to formalize distributivity in dot products under mapped addition. He also fixed and proved several key correctness lemmas and improved code readability. His contributions leveraged Isabelle/HOL, abstract algebra, and theorem proving, demonstrating depth in formal methods and mathematical logic.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
2
Lines of code
246
Activity Months2
Your Network
20 peopleShared Repositories
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Felipe EscallonMember
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Felix KrayerMember
Felipe EscallonMember
Work History
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025: Completed core Gauss-Jordan elimination proof and readability improvements in nipkow/AIST. Delivered essential correctness groundwork: introduced dot_map2_plus lemma for distributive dot products under mapped addition, and fixed/proved critical lemmas (solve1_unique, subst_unique, map_subst_unique, solves_correct). Implemented readability improvements in Gauss_Jordan.thy to enhance maintainability. Two commits captured: 0083def386b56f219f5ce73fd411e874dfbbf0b2 (main proof done) and 3e4dce395ad166bba1bb3e11fa09d720a7598f0a (minor cosmetic changes).
2 Commits • 1 Features
Jul 1, 2025July 2025: Completed core Gauss-Jordan elimination proof and readability improvements in nipkow/AIST. Delivered essential correctness groundwork: introduced dot_map2_plus lemma for distributive dot products under mapped addition, and fixed/proved critical lemmas (solve1_unique, subst_unique, map_subst_unique, solves_correct). Implemented readability improvements in Gauss_Jordan.thy to enhance maintainability. Two commits captured: 0083def386b56f219f5ce73fd411e874dfbbf0b2 (main proof done) and 3e4dce395ad166bba1bb3e11fa09d720a7598f0a (minor cosmetic changes).
July 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Focused on improving solution verification for linear systems in nipkow/AIST. Introduced is_sols3 as an alternative, more intuitive formulation for checking solutions; established its equivalence to is_sols and completed making is_sols exhaustive, thereby increasing verification clarity and correctness.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Focused on improving solution verification for linear systems in nipkow/AIST. Introduced is_sols3 as an alternative, more intuitive formulation for checking solutions; established its equivalence to is_sols and completed making is_sols exhaustive, thereby increasing verification clarity and correctness.
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Quality Metrics
Correctness96.6%
Maintainability86.6%
Architecture86.6%
Performance73.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
Isabelle/HOL
Technical Skills
Abstract AlgebraFormal VerificationLogicTheorem Proving
Repositories Contributed To
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