explicit_construction
CommunityConstruct explicit witnesses in Lean 4.
Authorbneb
Version1.0.0
Installs0
System Documentation
What problem does it solve?
Explicit construction provides concrete witnesses for existential statements, enabling direct verification rather than relying on non-constructive arguments.
Core Features & Use Cases
- Witness-based proofs: supply a specific object and a proof that it satisfies the property.
- Lean 4 integration: uses Lean 4 tactics like
exact,refine, anddecideto discharge goals. - Apply to Ramsey-type problems and bijections: embed witnesses into Lean terms for formal verification.
Quick Start
Provide a concrete witness and verify its property inside a Lean 4 proof.
Dependency Matrix
Required Modules
None requiredComponents
Standard package💻 Claude Code Installation
Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.
Please help me install this Skill: Name: explicit_construction Download link: https://github.com/bneb/perqed/archive/main.zip#explicit-construction Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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