1:1 between N and P(N)
52682
Is the power set of the natural numbers countable?
145966
Find $P(A\ xor\ B\ |\ A\ \cup\ B)$
65534
Given $P(B\mid A)=1-\varepsilon$ for some $0<\varepsilon<1$ and $P(C\mid B)=1$, prove that $P(C\mid A)≥1-\varepsilon$
11998
In how many sequences of length $n$, the difference between every 2 adjacent elements is $1$ or $-1$?
152870
Near integers in powers of binomials with radicals
124742
P(A|C)=P(A|B)*P(B|C)?
66610
Finding a correspondence between $\{0,1\}^A$ and $\mathcal P(A)$
70967
Permutation with prime order, fixed point
104016
Limit point of the set $G= \{1/n: n \in \mathbb N\}$?
81063
If $p$ is a polynomial, then either $\,p(z)=z^n\,$ or $\,\max_{|z|=1}|p(z)|>1$.
82025
The Probability $P_{[m]}$ that exactly $m$ among the $N$ events $A_1,\dots,A_N$ occur simultaneously
128093
Regarding the values that n and r can take in $\binom{n}{r}$
34491
Is there a way to show that $\sqrt{p_{n}} < n$?
116391
How to find P(2X>4)?
34960
Lower bound for $\phi(n)$: Is $n/5  1$?
110876
Prove that $p\mid \binom{p}{k},\ 0< k< p$
90411
$P(X_1 < \min(X_i,\ldots, X_n))$ across different normal random variables