LoCoBench for training and evaluating proof auto-formalization
A dataset for training and evaluating AI systems on formalizing mathematical proofs from diverse sources.
LoCoBench is a dataset comprising 58.9k instances from Mathlib, CSLib, Mizar Math Library, and a bounded-arithmetic textbook. It includes a 771-instance validation split with theorem-proof pairs that have no public Lean formalization.
Training and evaluating AI systems, such as AIProver, on the task of autonomous proof auto-formalization and proof synthesis.
Not specified
http://arxiv.org/abs/2610.05367v1
LoCoBench is a dataset designed for training and evaluating AI systems in mathematical proof formalization. It contains nearly 59,000 instances from various mathematical libraries and textbooks, including a challenging subset with no existing formalizations.
It provides a comprehensive and challenging benchmark for AI systems attempting to translate natural language mathematical theorems and proofs into formal languages, pushing the boundaries of current capabilities.
Not suitable for tasks outside of mathematical proof formalization.
- AIProver: Agentic Auto-Formalization of Mathematical Research via Certificate-Driven Evolving Harness ↗arXiv · arXiv cs.AI · Oct 4, 2026 · paraphrased
First seen on Subvolts Oct 4, 2026. Updated Oct 8, 2026. Spotted a problem? Tell us.
- AIProver: Agentic Auto-Formalization of Mathematical Research via Certificate-Driven Evolving HarnessAnthropic · arXiv cs.AI · Oct 4, 2026
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
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Questions people ask
- Which AI tools does this work with?
- Any current model. It was seen with in the sources.
- Where did this come from?
- arXiv (arXiv cs.AI). Subvolts collected, normalized and credited it; the link above opens the original.

