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Natural transformations: naturality and Yoneda v1.0.0

Use this resource to check the naturality of a transformation between functors

New

  • 491 downloads
  • 152 likes
  • 105 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install natural-transformation-naturality

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent checks the naturality condition for each morphism, analyzes the components, then identifies natural isomorphisms. It writes the statements in Lean 4 with Mathlib, including the Yoneda lemma. You get formal statements ready to compile.

Mostly picked by

Updated November 2, 2026

Card for the “Natural transformations: naturality and Yoneda” skill

Details

Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: naturality condition, components and natural isomorphisms
  • SKILL.md: Lean 4 templates (naturality, transformation, Yoneda lemma)

Good fit for

  • You need to prove that a family of morphisms is natural
  • You are formalizing the Yoneda lemma in Mathlib

Not for

    Tags

    • natural transformations
    • functors
    • Lean 4
    • Yoneda

    About

    You say

    “Show that this family of morphisms is a natural transformation between F and G.”

    Card for the “Natural transformations: naturality and Yoneda” skill

    Skill published by parcadei under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to check the naturality of a transformation between functors
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md1.9 KB

    Origin and licence

    Listed unmodified

    Author
    parcadei
    Source
    github.com/parcadei/continuous-claude-v3/tree/d07ff4b06b62f43771bc0c927d0211b734d6149e/.claude/skills/math/category-theory/natural-transformations
    Licence
    MIT

    Notice

    « natural-transformations » (parcadei, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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