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diff --git a/main.tex b/main.tex
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--- a/main.tex
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@@ -723,7 +723,7 @@ The order parameter term relies on some other identities. First, \eqref{eq:eta_s
 \end{equation}
 and therefore that the functional inverse $\eta_\star^{-1}[\eta]$ is
 \begin{equation}
-  \eta_\star^{-1}[\eta](x)=\frac b{2g\eta(x)}\Bigg(1-\sqrt{1-\frac{4g\eta(x)}{b^2}\frac{\delta F_\op[\eta]}{\delta\eta(x)}}\Bigg).
+  \eta_\star^{-1}[\eta](x)=\frac{b}{2g\eta(x)}\Bigg(1-\sqrt{1-\frac{4g\eta(x)}{b^2}\frac{\delta F_\op[\eta]}{\delta\eta(x)}}\Bigg).
 \end{equation}
 The inverse function theorem further implies (with substitution of \eqref{eq:dFodeta} after the derivative is evaluated) that
 \begin{equation}