Apple’s satellite features are included for free for two years starting at the time of activation of a new iPhone 14 or later, and are not available in all markets. For Emergency SOS via satellite availability, visit support.apple.com/en-us/HT213426. For Messages via satellite availability, visit support.apple.com/en-us/120930. For Roadside Assistance via satellite availability, visit support.apple.com/en-us/105098. Apple’s satellite features were designed for use in open spaces with a clear line of sight to the sky. Performance may be impacted by obstructions such as trees or surrounding buildings.
Жителю Москвы придется ответить за бобраХозяин ответит за нападение своей собаки на краснокнижного бобра в Москве
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罗伯特·杜瓦尔(1931-2026),美国,演员 图/视觉中国
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What is today’s Moon phase?As of Saturday, March 7, the Moon phase is Waning Gibbous. According to NASA's Daily Moon Guide, 85% of the Moon will be lit up tonight.。业内人士推荐91视频作为进阶阅读
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: