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                \begin{document}$$h=0$$\end{document}$. In order to inductively prove its validity at the generic step, let us discuss how to pass from scale *h* to scale $\documentclass[12pt]{minimal}
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                \begin{document}$$h-1$$\end{document}$, that is, how to integrate out the field $\documentclass[12pt]{minimal}
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                \begin{document}$$\Psi ^{(h)}$$\end{document}$, and how to re-express the resulting effective theory in the form ([4.21](#Equ76){ref-type=""}), with *h* replaced by $\documentclass[12pt]{minimal}
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                \begin{document}$$h-1$$\end{document}$. Before integrating the $\documentclass[12pt]{minimal}
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