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Illustration of the Dunce Hat topological space. Arrows show sides that should be glued together, along with their orientation. I created this with xfig and release it to the public domain.
La bildo estas kopiita de wikipedia:en. La originala priskribo estas: Illustration of the Dunce Hat topological space. Arrows show sides that should be glued together, along with their orientation. I created this with xfig and release it to the pub