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cs.AI2026
Do LLMs Game Formalization? Evaluating Faithfulness in Logical Reasoning
Kyuhee Kim, Auguste Poiroux, Antoine Bosselut
Formal verification guarantees proof validity but not formalization faithfulness. For natural-language logical reasoning, where models construct axiom systems from scratch without…
cs.AI2026
SorryDB: Can AI Provers Complete Real-World Lean Theorems?
Austin Letson, Leopoldo Sarra, Auguste Poiroux +9
We present SorryDB, a dynamically-updating benchmark of open Lean tasks drawn from 78 real world formalization projects on GitHub. Unlike existing static benchmarks, often composed…