Aristotle Lean API

Aristotle Lean API helps turn mathematical writing into formally verified Lean4 proofs, with a focus on rigorous reasoning for challenging problems.

Auto-formalize math into Lean4

Provide statements and proofs written in English, LaTeX, or Markdown, and the API converts them into Lean4 formal objects and checkable proof scripts. This lowers the barrier to formal verification when you don’t yet want to write Lean syntax from scratch.

Use via API in existing workflows

Aristotle is designed to plug into current systems and pipelines, which can be useful for teams working on formal methods, research tooling, or education where automated proof checking and Lean4 script generation are needed.

Counterexamples and reasoning checks

Beyond proof construction, Aristotle can search for counterexamples to proposed statements. This supports:

• Finding gaps or mistakes in informal arguments
• Refining theorem statements
• Improving the quality and correctness of mathematical text

It’s a fit for researchers as well as advanced students in mathematics and computer science who want stronger guarantees about their proofs.