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Gift Wrap Theorem


No subspace of R^n can be homeomorphic to S^n.


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References

Dodson, C. T. J. and Parker, P. E. A User's Guide to Algebraic Topology. Dordrecht, Netherlands: Kluwer, p. 121, 1997.

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Gift Wrap Theorem

Cite this as:

Weisstein, Eric W. "Gift Wrap Theorem." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GiftWrapTheorem.html

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