Наука и техника
据新华社报道，中国国家铁路集团有限公司公布，今年春节假期（腊月二十八至正月初七）全国铁路累计发送旅客 1.21 亿人次，同比增长 11.5%；同期国家铁路累计发送货物 8538 万吨，同比增长 0.5%。
。WPS下载最新地址是该领域的重要参考
«Они сами заварили эту кашу». Китай начал давить на Иран из-за конфликта с США. Что требует Пекин от партнера?19:31
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:
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