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I don't get what thought that picture is supposed to provoke.


The earth has "holes" and as such the proof of that statement for a sphere does not apply to the earth.


Thank you, something about this didn't make total sense to me.


Borsuk-Ulam applies to surfaces homeomorphic to a sphere, but the picture shows that the earth's surface is a sphere with at least one handle, a donut with at least one hole.




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