# Differences

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bands [2010/08/18 22:41]
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bands [2010/08/18 22:44] (current)
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==Morphisms== ==Morphisms==
Let $\mathbf{B}$ and $\mathbf{C}$ be bands. A morphism from $\mathbf{B}$ Let $\mathbf{B}$ and $\mathbf{C}$ be bands. A morphism from $\mathbf{B}$
-to $\mathbf{C}$ is a function $h:Barrow C$ that is a homomorphism: +to $\mathbf{C}$ is a function $h:B\to C$ that is a homomorphism:
$h(xy)=h(x)h(y)$ $h(xy)=h(x)h(y)$