Suppose that S1 is the unit circle in C and suppose that g:[0,2π]→C is continuous such that g(2π)=g(0).
I have to show that h:S1→C, x↦g(t(x)) is continuous. where t(x) is the number such that x=eit(x).
I guess that I have to show that if y∈B(x,ϵ), then y∈B(t(x),ϵ) (if ϵ is small enough). This directly implies the result. Can anyone help me to show this?
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