Ari Brodsky
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 Jan 18 revised $\{ (x,y) \in R^2 \mid x^2 + y^2 -2x + 4y - 11 = 0 \}$ is closed and bounded corrected 1 to R Jan 18 suggested approved edit on $\{ (x,y) \in R^2 \mid x^2 + y^2 -2x + 4y - 11 = 0 \}$ is closed and bounded Dec 27 comment Example of a relation that is reflexive but not symmetric @BrianO The strict variants are not reflexive. Dec 16 comment Unit Plus Nilpotent Is Unit Taylor series expansion? Dec 6 revised Show that a generalized knight can return to its original position only after an even number of moves previous title was misleading Dec 6 suggested approved edit on Show that a generalized knight can return to its original position only after an even number of moves Nov 3 awarded Nice Answer Nov 3 awarded Yearling Nov 2 awarded Teacher Nov 2 answered Which of the following powers is bigger: $2^{41}$ or $3^{24}$? Aug 23 comment Solve $y^2 + 3xy - 10x^2 + y + 5x = 0$ for y in terms of x Solve y in terms of x, or x in terms of y? Because y in terms of y doesn't make sense. Jun 24 revised Two different trigonometric identities giving two different solutions improved TeX formatting, especially using \cos and \sin and {align*} environments Jun 24 suggested approved edit on Two different trigonometric identities giving two different solutions Mar 1 comment Let $A$ and $B$ be sets, then if $A \subseteq B$ then $A \cap B = A$ I think you've reversed $\subseteq$ and $\supseteq$. Sep 23 comment The myth of no prime formula? @mathh Your \exists should be \nexists. Sep 9 comment Can't find mistake in an easy proof. @Frunobulax corrected now. Sep 9 comment How to solve this limits question For this solution to be correct, you need to show that the original expression is an indeterminate form $\infty/\infty$, which is not completely obvious from the expression as written. Sep 9 revised Can't find mistake in an easy proof. fix variable names Sep 9 suggested approved edit on Can't find mistake in an easy proof. Jul 29 awarded Organizer