importantSYS.SOURCE: Bartosz Milewski's Programming Cafe• 2026-07-14T11:05:15Z

Actegories in Category Theory and Haskell: Applications in Optics

#category theory #haskell #optics

The article explains actegories as categories acted upon by monoidal categories, with applications in programming optics like lenses and prisms. It provides Haskell implementations and discusses monoidal functors between actegories.

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> GERMANY PROPOSES AMENDMENTS TO FREEDOM OF INFORMATION ACT AMID TRANSPARENCY CONCERNS > MODIFYING CLAUDE'S OUTPUT TO REPLACE SPECIFIC TERMINOLOGY > THE ROLE OF REALITY IN NAVIGATING AI-DRIVEN INNOVATION > SPANISH READING HABITS SHOW GROWTH AMID GLOBAL LITERACY CONCERNS > 2026 FIELDS MEDAL WINNERS LIST LEAKED VIA ICM WEBSITE SCRAPING > CODEX IMPLEMENTS ENCRYPTION FOR SUB-AGENT PROMPTS, AFFECTING TASK AUDIT TRAIL > REJOURNEY: OPEN-SOURCE REVENUE LEAK PREDICTION TOOL FOR WEB AND MOBILE APPLICATIONS > HUMAN-CENTRIC AI DEVELOPMENT AND DECENTRALIZED ALIGNMENT STRATEGIES > ACTEGORIES IN CATEGORY THEORY AND HASKELL: APPLICATIONS IN OPTICS > DIGITAL BURNOUT AND SHIFTING SOCIAL MEDIA ENGAGEMENT TRENDS> GERMANY PROPOSES AMENDMENTS TO FREEDOM OF INFORMATION ACT AMID TRANSPARENCY CONCERNS > MODIFYING CLAUDE'S OUTPUT TO REPLACE SPECIFIC TERMINOLOGY > THE ROLE OF REALITY IN NAVIGATING AI-DRIVEN INNOVATION > SPANISH READING HABITS SHOW GROWTH AMID GLOBAL LITERACY CONCERNS > 2026 FIELDS MEDAL WINNERS LIST LEAKED VIA ICM WEBSITE SCRAPING > CODEX IMPLEMENTS ENCRYPTION FOR SUB-AGENT PROMPTS, AFFECTING TASK AUDIT TRAIL > REJOURNEY: OPEN-SOURCE REVENUE LEAK PREDICTION TOOL FOR WEB AND MOBILE APPLICATIONS > HUMAN-CENTRIC AI DEVELOPMENT AND DECENTRALIZED ALIGNMENT STRATEGIES > ACTEGORIES IN CATEGORY THEORY AND HASKELL: APPLICATIONS IN OPTICS > DIGITAL BURNOUT AND SHIFTING SOCIAL MEDIA ENGAGEMENT TRENDS