The infinitely stacked world \(D^2 \times \mathbb{R}^2\) is the universal cover of Bobs world \(S^1 \times D^2\), as it is simply connected and covers Bobs world (see the definition of universal cover above).
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作为核心项目，内部代号为「Campo」的全新 Siri 将深度集成谷歌的 Gemini 大模型，从而提升其在聊天交互、调用个人数据以及跨应用控制方面的能力。，推荐阅读51吃瓜获取更多信息
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