dhyan-aranha/FormalBook
Nov 2024 – Feb 2025
4 Months active
Languages Used
Lean
Technical Skills
DocumentationFormal VerificationLean Theorem ProverMathematical ProofMathematical ProofsEnvironment Management
dhyan-aranha
PROFILE
Dhyan-aranha
Dhyan Aranha developed formal geometry and combinatorics modules for the FormalBook repository, focusing on rigorous mathematical proof and code maintainability. Over four months, Dhyan formalized rainbow colorings and triangle properties in Lean, implemented a painter function mapping points in R² to colors under valuation constraints, and proved key lemmas such as bounded_det. The work included upgrading the Lean toolchain, integrating mathlib dependencies, and refactoring proofs for clarity and modularity. By resolving all placeholder proofs and maintaining repository hygiene, Dhyan ensured reproducible builds and robust formal verification workflows, demonstrating depth in Lean theorem proving, environment management, and mathematical formalization.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
23Total
Bugs
2
Commits
23
Features
7
Lines of code
3,725
Activity Months4
Your Network
14 people
Work History
February 2025
3 Commits • 1 Features
Feb 1, 2025Concise monthly summary for 2025-02 focusing on delivered features, fixed bugs, impact, and skills demonstrated for the dhyan-aranha/FormalBook project.
3 Commits • 1 Features
Feb 1, 2025Concise monthly summary for 2025-02 focusing on delivered features, fixed bugs, impact, and skills demonstrated for the dhyan-aranha/FormalBook project.
February 2025
January 2025
10 Commits • 4 Features
Jan 1, 2025Month 2025-01 focused on modernization, robustness, and maintainability of the FormalBook project, delivering key features, fixes, and foundational groundwork for future geometry formalization. The work emphasizes business value through dependency health, clearer proofs, and modularization that supports ongoing development and onboarding.
January 2025
10 Commits • 4 Features
Jan 1, 2025Month 2025-01 focused on modernization, robustness, and maintainability of the FormalBook project, delivering key features, fixes, and foundational groundwork for future geometry formalization. The work emphasizes business value through dependency health, clearer proofs, and modularization that supports ongoing development and onboarding.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for dhyan-aranha/FormalBook: Focused on tooling stability, formal correctness, and reproducible builds. Delivered a Lean toolchain upgrade and completed critical proofs to strengthen the reliability and maintainability of the formalization, with clear business value in reduced risk and faster onboarding.
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for dhyan-aranha/FormalBook: Focused on tooling stability, formal correctness, and reproducible builds. Delivered a Lean toolchain upgrade and completed critical proofs to strengthen the reliability and maintainability of the formalization, with clear business value in reduced risk and faster onboarding.
December 2024
November 2024
8 Commits • 1 Features
Nov 1, 2024In November 2024, the FormalBook project delivered a formal Lean formalization of rainbow colorings, added new structures for rainbow triangles, completed previously placeholder proofs, and improved repository hygiene. Highlights include defining Rainbow color type, a painter function mapping R^2 points to Red/Green/Blue under valuation conditions, establishing valuation bounds, proving that a line segment cannot contain three points of the same color, and introducing main lemma bounded_det. Two new files Rainbow_triangles.lean and rainbow_triangles definitions were added, with refactorings to replace all placeholders with actual lemmas. All outstanding 'sorry' placeholders were resolved. The work demonstrates end-to-end formal verification, modular design, and groundwork for broader combinatorial geometry formalization.
November 2024
8 Commits • 1 Features
Nov 1, 2024In November 2024, the FormalBook project delivered a formal Lean formalization of rainbow colorings, added new structures for rainbow triangles, completed previously placeholder proofs, and improved repository hygiene. Highlights include defining Rainbow color type, a painter function mapping R^2 points to Red/Green/Blue under valuation conditions, establishing valuation bounds, proving that a line segment cannot contain three points of the same color, and introducing main lemma bounded_det. Two new files Rainbow_triangles.lean and rainbow_triangles definitions were added, with refactorings to replace all placeholders with actual lemmas. All outstanding 'sorry' placeholders were resolved. The work demonstrates end-to-end formal verification, modular design, and groundwork for broader combinatorial geometry formalization.
Activity
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Quality Metrics
Correctness92.2%
Maintainability86.2%
Architecture83.4%
Performance82.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
Lean
Technical Skills
DocumentationEnvironment ManagementFormal VerificationGeometryLean Theorem ProverLinear AlgebraMathematical FormalizationMathematical ProofMathematical ProofsSet TheoryTheorem ProvingToolchain Configuration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline