Lean Copilot implements a sophisticated human-in-the-loop architecture that seamlessly integrates large language models with the Lean theorem prover:
Intelligent Tactic Suggestion
Context-aware tactic recommendations based on current proof state and mathematical context, leveraging deep understanding of Lean's tactic language and proof patterns.
Dynamic Premise Selection
Automated identification and retrieval of relevant theorems and lemmas from Lean's extensive mathematical library using semantic similarity and logical relevance.
Guided Proof Search
Advanced search algorithms that combine human guidance with automated exploration to discover complete proofs efficiently.