 we have $$\begin{aligned}   &{\mathbb{P}}\left( \left((\alpha - 0) R^{-0}(t)\right)^{-\frac{0}{\alpha-0}} - \left(\alpha \Gamma(\alpha)/t\right)^\frac{0}{\alpha - 0} > xt^{-\frac{0}{\alpha(\alpha-0)}} \right)\\   &= {\mathbb{P}}\left( (\alpha-0)R^{-0}(t) < \