# Friday, May 20 \begin{tikzcd} && {-2} & {-1} & 0 & 1 & 2 \\ {\mathbb{S} \coloneqq} & \cdots & {*} & {*} & {S^0} & {S^1} & {S^2} & \cdots \\ {\mathbb{S}^1 \coloneqq \Sigma^1 \mathbb{S} \coloneqq} & \cdots & {*} & {S^0} & {S^1} & {S^2} & {S^3} & \cdots \\ {\mathbb{S}^{-1} \coloneqq \Sigma^{-1} \mathbb{S} \coloneqq} & \cdots & {*} & {*} & {*} & {S^0} & {S^1} & \cdots \arrow[from=2-2, to=2-3] \arrow[from=2-3, to=2-4] \arrow[from=2-4, to=2-5] \arrow[from=2-5, to=2-6] \arrow[from=2-6, to=2-7] \arrow[from=2-7, to=2-8] \arrow[from=3-2, to=3-3] \arrow[from=3-3, to=3-4] \arrow[from=3-4, to=3-5] \arrow[from=3-5, to=3-6] \arrow[from=3-6, to=3-7] \arrow[from=3-7, to=3-8] \arrow[from=4-2, to=4-3] \arrow[from=4-3, to=4-4] \arrow[from=4-4, to=4-5] \arrow[from=4-5, to=4-6] \arrow[from=4-6, to=4-7] \arrow[from=4-7, to=4-8] \end{tikzcd} > [Link to Diagram](https://q.uiver.app/?q=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)