(Auto)formalization is supposed to be easy: Trellis process semantics for spelling out rigorous proofs

📰 ArXiv cs.AI

Learn how Trellis autoformalization system uses LLM agents to refine natural language proofs into rigorous ones, making formalization easier

advanced Published 9 Jun 2026
Action Steps
  1. Implement Trellis autoformalization system using LLM agents
  2. Refine natural language proofs through iterative refinement
  3. Enforce incremental progress in Lean autoformalization tasks
  4. Evaluate the effectiveness of Trellis in simplifying formalization
  5. Apply Trellis to various mathematical proof verification tasks
Who Needs to Know This

Researchers and developers working on formalization and proof verification tasks can benefit from this system, as it streamlines the process of creating rigorous proofs

Key Insight

💡 Trellis system leverages LLM agents to refine natural language proofs into rigorous ones, making formalization more accessible

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📝 Trellis autoformalization system makes formalization easier with LLM agents! 🤖

Key Takeaways

Learn how Trellis autoformalization system uses LLM agents to refine natural language proofs into rigorous ones, making formalization easier

Full Article

Title: (Auto)formalization is supposed to be easy: Trellis process semantics for spelling out rigorous proofs

Abstract:
arXiv:2606.09674v1 Announce Type: new Abstract: We present Trellis: an autoformalization system that leverages LLM agents in a deterministically constrained workflow to enforce incremental progress in Lean autoformalization tasks through iterative refinement of natural language proofs. Our approach is motivated by the common mathematician's notion of what it means to have a rigorous proof in the first place: namely, that it would be routine to elaborate any part of the proof in further detail. T
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