At the Lean FRO, Kim Morrison, a Senior Research Software Engineer, recently ran an experiment that went well beyond our expectations. An AI agent converted zlib, a widely used C compression library embedded in countless systems, to Lean, with minimal human guidance. No special tooling was built. It was Claude, a general-purpose AI, with no special training for theorem proving, out of the box. The workflow had four steps. First, the AI produced a clean, readable Lean implementation of the zlib compression format, including the DEFLATE algorithm at its core. Second, the Lean version passed the library’s existing test suite, confirming behavioral equivalence. Third, key properties were stated and proved, not as tests, but as mathematical theorems. The capstone theorem:
ВСУ запустили «Фламинго» вглубь России. В Москве заявили, что это британские ракеты с украинскими шильдиками16:45
，详情可参考搜狗输入法2026
Between March and June last year £12,447 was allegedly taken from several victims for the sale of tickets to see the band's reunion tour, Merseyside Police said.
Эскортница и колумнистка Мелисса Тодд рассказала, как впервые в своей карьере встретилась с необычным фетишем, ради которого ей пришлось наесться чеснока. Своей историей она поделилась в колонке для издания Metro.