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Karolis Juodelė

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59
Is there an elegant way to prove a function is linear?
math.stackexchange.com

28
Is $A$ regular if $A^{2}$ is regular?
cs.stackexchange.com

22
Is $\tan(\pi/2)$ undefined or infinity?
math.stackexchange.com

21
Can two topological spaces surject onto each other but not be homeomorphic?
math.stackexchange.com

14
How to find the maximal set of elements $S$ of an array such that every element in $S$ is greater than or equal to the cardinality of $S$?
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14
Proving $\sqrt{a+\sqrt{b}}=\sqrt{m}+\sqrt{n}\iff a^{2}-b$ is a square
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12
Colour a binary tree to be a red-black tree
cs.stackexchange.com

12
Why does $\sum\limits_{n=2}^{\infty} \frac{ 1}{ n^2 \log (n) }$ converge?
math.stackexchange.com

12
How to see $\sin x + \cos x$
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11
How come $\frac{n!}{n_1!\cdot n_2!\cdot…\cdot n_k!}$ is always an integer?
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11
Where's the problem in this equation? Resulting in $4 = 5$
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10
how to prove Exponential is strictly positive?
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10
Proving that the limit of $\root n \of {{a_1}^n + {a_2}^n + … + {a_k}^n}$ is $\max(a_1,…a_k)$
math.stackexchange.com

10
What would dynamically-typed languages actually do if type enforcement was removed?
cs.stackexchange.com

10
limit: $u_n=\frac{1+2^2+3^3+…+n^n}{n^n}$.
math.stackexchange.com

9
Haskell - List comprehension in a list of tuples (a,[a])
stackoverflow.com

9
Showing that $ 1<\sin\frac{\alpha}{2}+\sin\frac{\beta}{2}+\sin\frac{\gamma}{2}$
math.stackexchange.com

9
Is $\mathbb R^2$ a field?
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9
“closure preserves homeomorphism”
math.stackexchange.com

9
When should a function be standalone and when should it be in a type class? Is it just a matter of taste?
stackoverflow.com

8
How can I print a newline properly in Haskell?
stackoverflow.com

8
prove (by grammar or closures) that the prefix language is context free
math.stackexchange.com

8
“Applicative order” and “Normal order” in lambda-calculus
cs.stackexchange.com

8
Are the non-regular languages closed under reverse, union, concatenation, etc?
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8
Mathematical way of determining whether a number is an integer
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7
$\sum a_n$ converges absolutely, does $\sum (a_n + \cdots + a_n^n)$ converge
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7
Hardness proof of EVEN-ODD PARTITION
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7
Are all multiplicative functions additive?
math.stackexchange.com

7
Why does my Angular function is called in infinite loop?
stackoverflow.com

7
error C2995: function template has already been defined
stackoverflow.com

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