extremal_principle_infinite_descent
CommunityDerive minimal counterexamples with Lean 4.
Education & Research#lean4#proof-assistant#termination#extremal-principle#infinite-descent#well-founded#nat.find
Authorbneb
Version1.0.0
Installs0
System Documentation
What problem does it solve?
It provides a structured approach for formalizing extremal principles and infinite-descent proofs in Lean 4, enabling termination arguments and minimal-counterexample reasoning.
Core Features & Use Cases
- Lean 4 templates for extremal principle and infinite descent
- Minimal-counterexample extraction using Nat.find and Nat.find_min
- Well-founded recursion patterns with termination guarantees
Quick Start
Prove a simple theorem by assuming the smallest counterexample and deriving a contradiction in Lean 4.
Dependency Matrix
Required Modules
None requiredComponents
Standard package💻 Claude Code Installation
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Please help me install this Skill: Name: extremal_principle_infinite_descent Download link: https://github.com/bneb/perqed/archive/main.zip#extremal-principle-infinite-descent Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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