Hatcher, *Algebraic Topology*, Chapter 2, Section 1

**26. Show that is not isomorphic to if and is the sequence together with 0. [See example 1.25.]**

*Proof.*

Hatcher, *Algebraic Topology*, Chapter 2, Section 1

**26. Show that is not isomorphic to if and is the sequence together with 0. [See example 1.25.]**

*Proof.*

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