20版 - 让九色鹿替我们“扯一把地气”(书里书外)

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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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CUDA 环境变量 CUDA_HOME 是否指向 /home/users/yue01.chen/cuda-11.8

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