Elias

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An expert is a man who has made all the mistakes, which can be made, in a very narrow field. (Niels Bohr)

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 Aug24 reviewed Approve suggested edit on Why $\cos^2 x-\sin^2 x = \cos 2x\;?$ Aug23 reviewed Leave Closed Solve inequality: $-5 < \frac{1}{x} < 0$ Aug23 reviewed Close Number of ways to divide variables into two categories Aug23 reviewed Close Why must $b=0$ for this linear system to have infinitely many solutions for all $a$? Aug21 reviewed Approve suggested edit on Check my proof by contradiction… Aug20 reviewed Close A subset that is closed under multiplication but not addition? Aug20 reviewed Reject suggested edit on Given a Sequence ABCDEFG, what is the probability that the letters A and C , both will come after D, in all possible permutations of the sequence? Aug20 revised Banach Fixed Point Theorem. Measurable version. Add my attempt. Aug20 reviewed Reject suggested edit on Given a Sequence ABCDEFG, what is the probability that the letters A and C , both will come after D, in all possible permutations of the sequence? Aug20 reviewed Reject suggested edit on Solving $xy''-(1-x)y'+y=0$ Aug20 revised The problem of the most visited point. deleted 1 character in body Aug20 reviewed Reject suggested edit on how shall i find the $n$-th term of this, Aug20 reviewed Edit suggested edit on Matrices over field with characteristic $p$ Aug20 revised Matrices over field with characteristic $p$ Math mode in title. Aug20 reviewed No Action Needed Laws of equivalence needed to prove $\;q \leftrightarrow (¬p ∨ ¬q) ≡ (¬p ∧ q)\;?$ Aug20 reviewed No Action Needed How do you calculate this limit $\lim_{n\to\infty}\sum_{k=1}^{n} \frac{k}{n^2+k^2}$? Aug20 revised Distributional derivate of $f(t)$ deleted 13 characters in body; edited title Aug19 comment $d(x,y)^2 \le d(x,z)^2 - d(y,z)^2\color{}{+\varphi\big(x,y,z,d(x,y),d(y,z) \big)}?$ @900sit-upsaday Thanks for your help. However this article from the article link is not what I seek. I did not know this article. Hopefully he quotes the article or article that is cited by the try. Your information has been very helpful. Aug19 revised min-max polynomial approximation with sign definite error added 35 characters in body Aug19 reviewed No Action Needed Do all equilibria in 2 player zero sum games have the same distribution over outcomes