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1. Come up with another topology (that is, one not discussed in class) on the real line and show it is not the same as the standard topology.

2. Give 3 different topologies on the set of four points.

3. Section 1.1: Problems 19 and 23 (for 23 use the subspace topology of the standard topology on the plane)

4. Section 2.1: 2,3,4,6,7,8,12

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section 1.1: 1,3,4,5,9,10,14,18,27. You should actually make the surfaces out of paper, except for the Klein bottle.

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Soon there will be more information here about Math 168, Algebraic Topology.

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