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What is the difference between $x$ and $\{x\}$ when $x$ itself is a set?

elementary-set-theory notation asked Jan 25 '18 at 13:32

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Likelihood ratio test for mixed effects model

mixed-model variance likelihood likelihood-ratio asked Aug 12 '20 at 17:48

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Continuous-time Markov Chain question

probability probability-theory probability-distributions markov-chains markov-process asked Apr 9 '18 at 11:06

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Top Answers

How many integral values of $k$ such that $2x^3+3x^2+6x+k=0$ has exactly three real roots

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How to prove that $87!<16! \left(52^{71}\right)$

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Number of monic polynomials

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Find expected value of last roll

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Given a set $A \subseteq \{1,2,3…150\}$ such that $|A|=25$. Prove there are $a,b,c,d\in A$ satisfying $a+b=c+d$

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Proving $\dim E=\dim \ker f + \dim \operatorname*{Im}{f}$

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find the value of $a\in\Bbb{Z}$ such that $2+\sqrt{3}$ is a root of the polynomial?

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How can I prove $\sqrt{\sin^2(x)}\neq \sin(x)$

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Sequence $(\frac{a_n}{n})$ is convergent.

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Covaration of independent Brownian Motions is zero

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