37.65.0.1
\begin{equation} \label{more-morphisms-equation-normalized-base-change} \xymatrix{ Y \ar[rd] \ar[r]_\nu & X_ B \ar[r] \ar[d] & X \ar[d] \\ & \mathop{\mathrm{Spec}}(B) \ar[r] & \mathop{\mathrm{Spec}}(A) } \end{equation}
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