Can I export the visualizations for use in publications?

Absolutely. The skill supports exporting proof trees as interactive HTML, static PNG/SVG images, and LaTeX code specifically for academic documentation.

Is this tool suitable for those new to Lean 4?

Yes, one of its primary goals is to make formal proofs more accessible by providing an intuitive visual bridge for those who find raw Lean code too abstract.

What is Paperproof Validator?

It is a specialized capability for Lean 4 that converts abstract code-based proofs into visual, paper-like trees, making the flow of hypotheses and goals much easier to follow.

Does it support complex tactics like induction?

Yes, it handles a wide range of Lean 4 tactics including induction, cases, and by_contra, visualizing the specific transformations and scope changes they cause.

How does it integrate with the Lean 4 environment?

It interfaces with the Lean InfoTree and VS Code extension, tracking your cursor position to provide a real-time visual representation of the theorem or lemma you are currently editing.

Paperproof Validator

Name: Paperproof Validator
Author: plurigrid

byplurigrid

•

Aprendizaje y Documentación

Visualizes and verifies formal Lean 4 proofs by transforming abstract code into intuitive, paper-like proof trees.

Paperproof Validator is a specialized tool for the Lean 4 ecosystem that bridges the gap between formal mathematical logic and human intuition. By extracting data from the Lean InfoTree, it renders interactive visualizations of proof states—clearly mapping hypotheses, goals, and tactic transformations. Whether you are a researcher documenting complex theorems or a student learning formal verification, this skill provides the visual clarity needed to debug proof structures and ensure logical correctness through every step of a theorem's construction.

Características Principales

01Multi-format export options including HTML, LaTeX, and high-resolution images

02Real-time extraction of proof metadata and structure from Lean 4 InfoTree

03Hierarchical proof tree visualization with color-coded nodes for hypotheses and goals

04Comprehensive support for complex tactics including induction, cases, and contradiction

05Interactive scope tracking using nested visual boundaries and opacity cues

068 GitHub stars

Casos de Uso

01Onboarding new contributors to formal verification projects through intuitive proof navigation

02Debugging complex Lean 4 theorems by identifying exactly where a proof state diverges from expectations

03Creating high-quality visual proof representations for academic papers and educational materials

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add plurigrid/asi paperproof-validator

For use in Claude.ai and ChatGPT

Download Skill