# EasyProver Tackles Lean Proofs for Real Rust Code

> A new system proved 52.7% of a sample of 2,000 verification tasks built from Rust programs, with up to 30 minutes per task.

Oossa · 2026-10-30 · https://oossa.com/en/easyprover-tackles-lean-proofs-for-real-rust-code

Researchers introduce EasyProver, a system that uses AI agents to prove or refute statements in Lean, a language for writing machine-checkable proofs. They also introduce Aegis, a benchmark that turns competitive-programming problems into verification tasks tied to Rust implementations.

In the researchers’ evaluation, EasyProver proved 1,054 of 2,000 sampled Aegis statements within a 30-minute limit per statement. The paper also reports high scores on established theorem-proving benchmarks, which the researchers say are close to saturation.

## The facts

- Aegis contains 2,045 Rust–Lean program pairs and 11,533 candidate specifications.
- The paper reports 1,054 proofs out of 2,000 sampled statements, or 52.7%.

## Why it matters

For software teams considering formal checks on Rust code, Aegis offers tasks that include details such as integer casts and failure behavior; whether EasyProver can verify their own code efficiently remains unknown.

## Sources & references

1. [Scaling Lean Theorem Proving for Real-World Code Verification](https://arxiv.org/abs/2610.38174) – arXiv, 2026-10-30

Last updated: 2026-10-30