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 Jun 8 awarded Popular Question May 28 awarded Yearling May 6 awarded Notable Question May 5 revised (Galois Theory) Let $E/K$ be a Galois extension with Galois group isomorphic to $Z_{12}$. Determine the subfield lattice for $E/K$ updated lattice (made an error the first time) May 5 suggested approved edit on (Galois Theory) Let $E/K$ be a Galois extension with Galois group isomorphic to $Z_{12}$. Determine the subfield lattice for $E/K$ Apr 8 revised A Young Math Enthusiast's Fear retracted personal information, and minor edits Mar 19 awarded Notable Question Mar 16 revised Assume that $1a_1+2a_2+\cdots+na_n=1$, where the $a_j$ are real numbers. Formatting Mar 16 suggested approved edit on Assume that $1a_1+2a_2+\cdots+na_n=1$, where the $a_j$ are real numbers. Dec 10 awarded Caucus Oct 28 comment finding numbers to make both sides equal @bof Sorry! I meant the largest. Silly error! Oct 28 comment finding numbers to make both sides equal Either by solving $1000=x(x+1)(x+2)$ or by brute-force, you'll find out that $45$ is the smallest $x$ that works. So, anything below $45$ is fair game. Oct 17 comment Solving an exercise in Pinter's Abstract Algebra The set you describe is called the normalizer of $H$ in $G$. Check out proofwiki.org/wiki/Normalizer_is_Subgroup Sep 30 awarded Explainer Sep 12 awarded Popular Question Sep 11 awarded Notable Question Jul 24 awarded Good Question Jul 2 awarded Curious May 28 awarded Yearling May 24 awarded Good Answer