I need to prove that if $X$ is a compact Polish space, then $Homeo(X)$ (the set of homeomorphisms from $X$ to $X$) is a $G_\delta$ subset of $C(X,X)$ (the space of continuous functions with de topology given by the uniform convergence metric i.e. $d_{\infty}(f,g)=\sup_{x \in X}\{d_X(f(x),g(x))\}$) and hence is a Polish space. Any help is appreciated.
2026-02-23 12:07:51.1771848471
Is Homeo$(X)$ a $G_\delta$ subset of $C(X,X)$?
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