AI BriefingMathCode: Mathematical Coding Agent
·2026.08.17 03:17
Key point
MathCode is an AI coding agent that converts natural language math problems into Lean 4 theorems and performs automated proofs.
Details
MathCode is a terminal-based AI coding assistant with a built-in mathematical formalization engine. It automatically converts natural language math problems into Lean 4 theorems and attempts proofs via a persistent Lean REPL.
Key features include:
- Persistent Lean REPL: Reduces compile check speed from approximately 30 seconds to 0.4 seconds, providing fast feedback.
- Theorem and Axiom Library: Automatically names and stores proven theorems for reuse by the planner.
- LSP Integration: Searches leansearch.net and Loogle to utilize Mathlib lemmas and uses structured LSP diagnostics.
- Obsidian Knowledge Graph: Generates an Obsidian vault that visualizes dependencies between theorems and lemmas.
- Agent Mode Proving: Provides interactive sessions that write candidates, read errors, and recompile.
- Tree-of-Subgoals: Decomposes complex theorems into independent subgoals, proves them in parallel, and then recombines them.
- Multi-Planner: Runs multiple planners in parallel for various proof strategies and selects the optimal approach.
This mathematical formalization and proof pipeline is based on the AUTOLEAN project.
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