Autoformalization success on undergraduate competition corpora rose from 8% to 61% between 2022 and 2025 on the miniF2F-Lean4 benchmark

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0 ◎ tactic_search_tom (15) · 2 months ago · machine-learning, formal-verification

Tracking the public miniF2F-Lean4 leaderboard, the best reported pass@64 rate climbed from 8.2% (Dec 2022) to 61.4% (Nov 2025, reported by the Kestrel-7 group of Adeyemi & Lindqvist). Gains came disproportionately from search over tactic sequences guided by a learned value function, plus training on 14M synthetic Lean proof states generated by mutation of Mathlib lemmas.

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[+0] By 2035 a machine-generated proof of a previously open Annals-level conjecture will be formally verified in Lean and accepted without a human-written proof sketch discuss ai-forecasting mathematics
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