
Afiq Hatta developed formalizations of quantum mechanical and classical physics concepts in the HEPLean/PhysLean Lean repository, focusing on reflectionless potentials, hyperbolic tangent operators, and rigid body dynamics. He applied Lean theorem proving and functional programming to encode mathematical structures, rigorously proving properties such as differentiability, operator algebra, and temperate growth. His work included implementing creation and annihilation operators, formalizing rigid body motion, and improving code quality through linting, refactoring, and documentation. By emphasizing code consistency and formal verification, Afiq enabled more reliable analytic modeling, streamlined future research, and strengthened the maintainability and correctness of the PhysLean codebase.

October 2025: Strengthened the PhysLean library with formalization of rigid body dynamics and improved core physics code quality. Delivered a formalization including coordinate systems, degrees of freedom, velocity decomposition, angular momentum, and rotational motion equations, with accompanying documentation. Implemented extensive bug fixes and linting improvements to ensure stable builds and cleaner, more maintainable codebase.
October 2025: Strengthened the PhysLean library with formalization of rigid body dynamics and improved core physics code quality. Delivered a formalization including coordinate systems, degrees of freedom, velocity decomposition, angular momentum, and rotational motion equations, with accompanying documentation. Implemented extensive bug fixes and linting improvements to ensure stable builds and cleaner, more maintainable codebase.
September 2025 was productive for HEPLean/PhysLean, delivering two major features that strengthen theoretical foundations and future research potential. The work emphasized formal correctness, readability, and scalable abstractions that will support ongoing development and collaboration.
September 2025 was productive for HEPLean/PhysLean, delivering two major features that strengthen theoretical foundations and future research potential. The work emphasized formal correctness, readability, and scalable abstractions that will support ongoing development and collaboration.
August 2025 monthly summary for HEPLean/PhysLean focusing on delivering foundational features for reflectionless potentials, formalizing tanh-related properties, and cleaning up the Lean codebase. The work enhances modeling fidelity for quantum potentials and demonstrates strong formal verification capabilities.
August 2025 monthly summary for HEPLean/PhysLean focusing on delivering foundational features for reflectionless potentials, formalizing tanh-related properties, and cleaning up the Lean codebase. The work enhances modeling fidelity for quantum potentials and demonstrates strong formal verification capabilities.
July 2025 performance summary for HEPLean/PhysLean: Delivered Lean formalization of reflectionless potentials in 1D quantum mechanics, including definitions of the potential structure and a concrete function V(x); Implemented reflectionless potential support in Lean; Fixed linter errors to improve CI hygiene; Contributed groundwork for formal proofs and theoretical development; This work strengthens the codebase, enabling rigorous verification of quantum mechanical properties and accelerating future research.
July 2025 performance summary for HEPLean/PhysLean: Delivered Lean formalization of reflectionless potentials in 1D quantum mechanics, including definitions of the potential structure and a concrete function V(x); Implemented reflectionless potential support in Lean; Fixed linter errors to improve CI hygiene; Contributed groundwork for formal proofs and theoretical development; This work strengthens the codebase, enabling rigorous verification of quantum mechanical properties and accelerating future research.
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