If , show that every map(maybe continuous) is homotopic to a constant.

This is the problem 5 in chap8. of 'topology from the differentiable viewpoint(Milnor)'.

I proved it when the map is not onto. But I think it can be onto.

Please help me.

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- Jun 9th 2010, 04:32 AMStigerhomotopy
If , show that every map(maybe continuous) is homotopic to a constant.

This is the problem 5 in chap8. of 'topology from the differentiable viewpoint(Milnor)'.

I proved it when the map is not onto. But I think it can be onto.

Please help me. - Jun 9th 2010, 10:23 AMDrexel28
- Jun 9th 2010, 07:51 PMxxp9
sorry I was wrong

- Jun 10th 2010, 06:20 AMStiger