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B From a 4D perspective would 3D infinity exist?

  1. Jul 2, 2016 #1
    From the perspective of a 4D observer would 3D infinity appear to exist? Why/why not?
     
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  3. Jul 2, 2016 #2

    PeterDonis

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    What does this mean?
     
  4. Jul 3, 2016 #3

    mathman

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    Reduce to 3d observer looking at 2d infinity. You will be able to answer your own question.
     
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