Kerodon

\begin{equation} \begin{gathered}\label{equation:comparison-of-towers} \xymatrix@R =50pt@C=50pt{ \cdots \ar [r] & \operatorname{cosk}_{4}(X) \ar [r] \ar [d] & \operatorname{cosk}_{3}(X) \ar [r] \ar [d] & \operatorname{cosk}_{2}(X) \ar [r] \ar [d] & \operatorname{cosk}_{1}(X) \ar [d] \\ \cdots \ar [r] & \operatorname{cosk}_{3}^{\circ }(X) \ar [r] \ar [d] & \operatorname{cosk}_{2}^{\circ }(X) \ar [r] \ar [d] & \operatorname{cosk}_{1}^{\circ }(X) \ar [r] \ar [d] & \operatorname{cosk}_{0}^{\circ }(X) \ar [d] \\ \cdots \ar [r] & \pi _{\leq 3}(X) \ar [r] & \pi _{\leq 2}(X) \ar [r] & \pi _{\leq 1}(X) \ar [r] & \pi _{\leq 0}(X), } \end{gathered} \end{equation}