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when toggle format what by license comment
Jul 7, 2022 at 10:47 history edited Martin Sleziak CC BY-SA 4.0
a minor typo
S Jun 13, 2022 at 11:17 history suggested Corentin B CC BY-SA 4.0
Change $I\subseteq\mathbb Z$ for $I\subseteq N$. We have $[t^{-n}at^n,a]=t^{-n}[t^nat^{-n},a]^{-1}t^n$ so don't get the freedom to pick the value for $n<0$.
Jun 13, 2022 at 7:36 review Suggested edits
S Jun 13, 2022 at 11:17
Jun 8, 2021 at 13:46 history answered AGenevois CC BY-SA 4.0