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 Mar16 suggested approved edit on Does this qualify as a Laurent series? Mar16 suggested approved edit on Show that $(x\in\mathopen]0,1\mathclose[\mapsto \frac{1}{1-ax})_{a\in\mathopen]0,1\mathclose[}$ is free Mar2 suggested approved edit on Notation for difference of two dates Jan27 suggested approved edit on Is there a notation for being “a finite subset of”? Aug22 suggested rejected edit on If $A$ and $B$ are closed subsets of the set of real numbers, then is $A+B$ closed? Aug22 suggested approved edit on Make $n$ cents with $1$-cent, $2$-cent, and $3$-cent coins Aug10 suggested approved edit on What is remainder when $5^6 - 3^6$ is divided by $2^3$ (method) Mar28 suggested approved edit on If $\mathbb Z_m\times\mathbb Z_n$ is cyclic, then it's generated by $(\mathrm{gen}(F),\mathrm{gen}(G))$ Jan13 suggested approved edit on $X$ and $1 - X$ are identically distributed Nov22 suggested approved edit on Cool simple solution to: $-A^2$ is not the identity matrix Nov22 suggested approved edit on Integral value of z Nov18 suggested approved edit on $\lim_{x \to 0} \frac{x^n}{\cos\sin x -\cos x}=l$, find $n$ such that $l$ is non zero finite real Nov18 suggested approved edit on Application of Farkas' Lemma Nov18 suggested approved edit on Limit: $\lim_{n\to \infty} \frac{n^5}{3^n}$ Nov18 suggested approved edit on Help in evaluating $\int \frac {t^4 \tan t}{2 + \cos t}~dt$ Oct31 suggested rejected edit on Deriving $\neg R$ from $\{R↔(R∨(P∧¬P)), R↔¬P, ¬P→(P↔(Q→Q)), P→Q\}$ Oct19 suggested approved edit on finding the inverse of function. the domain is given and the question requires to find the inverse. Dec20 suggested approved edit on Convert linear to angular speed while moving in an ellipse Dec4 suggested approved edit on $AA^{*}=I$ if and only if the rows of $A$ form an orthonormal basis Nov27 suggested approved edit on Is it ok to switch the limits in $L_2$?