Is $f(x)=\Gamma(x)^{\Gamma(x)},\quad x>0$ a convex function.

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Is $$f(x)=\Gamma(x)^{\Gamma(x)},\quad x>0$$ a convex function.

In my attempt to solve this problem I tried to use the fact that Gamma is a convex function when x>0, I could not complete the proof.

Question is given by Jalil Hajimir.