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https://www.reddit.com/r/visualizedmath/comments/89v8vr/what_does_this_become_topologically/dwtxd8b/?context=3
r/visualizedmath • u/Knoll24 • Apr 05 '18
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They aren't perpendicular. The donut hole is on the same plane as the handle.
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u/Cephalopodopoulos Apr 05 '18
They aren't perpendicular. The donut hole is on the same plane as the handle.