We present lf-lean, a verified translation of all 1,276 statements of the Logical Foundations textbook from Rocq to Lean, produced by frontier AI with ~2 person-days of human effort versus an estimated ~2.75 person-years manually (a 350x speed-up). We achieve this through task-level specification generators: because many software transformations are semantics-preserving, correctness can be defined once for an entire task class and checked automatically across all instances and codebases. This scales human oversight from 𝒪(𝓃) to 𝒪(1) regardless of program complexity. Placed on METR's time horizon graph, our result suggests verified software engineering is advancing faster than expected.
Ранее иностранцы ринулись скупать крестики как у россиянина из «Жаркого соперничества».
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Разыскиваемый за кражу россиянин ранил ножом стажера полиции08:45，这一点在谷歌中也有详细论述
2.老朋友，新面孔在最终PV尚未发布前，许多玩家都以为只有四名角色，但最终PV还是带回了大家第四喜欢的故障机器人。，这一点在实时热点中也有详细论述