Is it correct? $\neg$(a and b)=(not a) or (not b) What ruleset can i look up for negations? Especially for "all", "if, then" statements.

A couple of days ago in AP Calculus, we had an assignment with this problem. Earlier today in class, we received our grades on the assignment... and every...

Given a graph $G=(V,E)$ and $2$ vertices $s,t \in V$, how can I find the maximum number of edge-disjoint paths from $s$ to $t$ using a flow network? $2$ p...

$L(u+v) = L(u) + L(v)$ for every $u$ and $v$ $L(cu) = cL(u)$ for any $u\in V$, and $ c$ any real number Do both conditions have to meet or can we say a ve...

Can you please help me by giving an example of a stochastic process that is Martingale but not Markov process for discrete case?

I was working on an exercise in Artin about orders of products of elements in abelian groups, and found the following question about my problem. There, I ...

I'm trying to solve the following equation for a couple of hours with no success. $x+\ln(x^2-1)=0$ I'm trying to find x. I tried playing with lo...

I've been practicing some Fourier transform questions and stumbled on the following one. To start off, I defined the Fourier transform for this funct...

I was checking that if product of first n primes+1 gives a prime again is true to how many n For example $$2+1=3$$ is a prime$$2\times 3+1=7$$ is a prime$...

How would I find the covariance of $X+Y$ and $X-Y$, given that $X$ and $Y$ are independent normal random variables, both with mean $0$ and variance $1$? M...