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Let [imath]C[/imath] denote Cantor's ternary set and let
[dmath]
f(x) =
\begin{cases}
3x & \text{if } x \leq 1/2 \\
3(1-x) & \text{if } x > 1/2.
\end{cases}
[/dmath]
a. Show that Cantor's ternary set is invariant under [imath]f[/imath], i.e. [imath]f:C\to C[/imath].
b. Describe they dynamics of [imath]f[/imath] on [imath]C[/imath] in terms of ternary expansions.
c. Explain why [imath]f[/imath] is chaotic on [imath]C[/imath].