Equation 25.9.1.2 (01GR)—The Stacks project

25.9.1.2

$\begin{equation} \label{hypercovering-equation-dual-diagram} \xymatrix{ \Delta [1] \times \Delta [n + 1] & \Delta [1] \times \partial \Delta [n + 1] \ar[l] \\ \Delta [n + 1] \amalg \Delta [n + 1] \ar[u] & \partial \Delta [n + 1] \amalg \partial \Delta [n + 1] \ar[l] \ar[u] } \end{equation}$

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