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Duncan Lowther

PROFILE

Duncan Lowther

Worked on the agda/agda-categories repository to enhance the Bicategory Object Product by adding a missing congruence and deriving a proof of the defining equivalence on hom-categories, improving formal correctness and extensibility. Refactored the Product record encapsulation by privatizing specific modules, which strengthened code structure and maintainability. Leveraged expertise in Agda, category theory, and type theory to ensure that the codebase supports future extensions and remains robust for formal verification tasks. The work focused on deepening the mathematical rigor of the library while streamlining its architecture, resulting in tangible improvements to both correctness and long-term maintainability.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

2Total
Bugs
0
Commits
2
Features
1
Lines of code
122
Activity Months1

Your Network

15 people

Work History

January 2026

2 Commits • 1 Features

Jan 1, 2026

January 2026 (agda/agda-categories) — Key features and codebase improvements delivered with tangible business value. Delivered Bicategory Object Product enhancements and Product record encapsulation refactor, strengthening correctness and maintainability while enabling easier future extensions.

Activity

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Quality Metrics

Correctness100.0%
Maintainability90.0%
Architecture100.0%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Agda

Technical Skills

Category TheoryFormal VerificationType Theorycategory theoryfunctional programmingtype theory

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

agda/agda-categories

Jan 2026 Jan 2026
1 Month active

Languages Used

Agda

Technical Skills

Category TheoryFormal VerificationType Theorycategory theoryfunctional programmingtype theory