Prove the centralizer of an element in group $G$ is a subgroup of $G$ Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
What is conjugate in group theory? - Mathematics Stack Exchange Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
Whats special properties does the number 1372 have? I've just watched a Simpsons episode called "Burns Verkaufen der Kraftwerk" (S3E11) In that episode, when the German investors talk with Homer Simpson, they said they were from "The Land of Chocolate" Homer than imagines a land full of chocolate In the beginning of the cut-away gag, there is a sign writing "Land of Chocolate Pop 1372"
Difference between centralizer and center groups? Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
Why is a Sylow $p$-subgroup normal iff theres only one of them? Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
Is positive the same as non-negative? This has lead to the gag among my friends where appending "in the French sense" turns any open condition into a closed one $\endgroup$ – Willie Wong Commented Jan 21, 2011 at 23:44