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  1. M

    Examples of surjections

    may be you could start by finding a one-one, onto map from [0,1] to [0,1] (cross) [0,1]. i mean a bijective map from [0,1] to the unit square in the plane.
  2. M

    Examples of surjections

    here's an exercise you might find interesting... find a bijection from the real line to the unit square in the plane...
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