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44
What is the reason for using && instead of ; to place to commands on the same line?
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36
What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
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26
Can a collection of points be recovered from its multiset of distances?
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20
All natural numbers are equal.
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15
Using $\bigvee$ and $\bigwedge$ instead $\exists$ and $\forall$
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11
Are there any other constructions of a finite field with characteristic $p$ except $\Bbb Z_p$?
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10
How can I evaluate this limit?
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9
Is $\mathbb{Z}^2$ cyclic?
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9
Examples of abelian subgroups of non-abelian groups.
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8
Example of group homomorphism $f: G \to G$ that is injective, but not surjective.
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7
When an ideal is a prime ideal
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7
Difference between “There is one” vs “there is at least one”
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7
Combinatorial explanation to following recurrence relation $a_n = 2 a_{n-1} + a_{n-2}$
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6
Is there a $(6,9,3)_2$ code?
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6
Fermat's 'proof' of his Last Theorem
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6
Minimum number of points to beat the drop in the English Premier League?
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6
If x is rational, $x\ne 0$, and $y$ irrational, prove $x+y, x-y, xy, x/y$ and $y/x$ are all irrational.
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6
$\forall m \exists n$, $mn = n$ True or False
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6
How to simplify a square root
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6
If $R$ and $S$ are fields, either prove or disprove that $R\times S$ is a field
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6
Let $x,y$ in a group G with uneven order. Let $x^2=y^2$. Show that $x=y$.
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6
Factorize $3m^4-6m^3+14m^2-6m+11$
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6
Representing the function $\mathbb Z_9\to\mathbb Z_9$, $f(0) = 1$, $f(1) = \ldots = f(8) = 0$ as a polynomial in $\mathbb Z_9[x]$
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5
Dealt 3 cards. Odds of being dealt any pair?
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5
prime divisor of $3n+2$ proof
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5
Prove that in $\mathbb{Z}_p$, $[a]^{-1} = [a]$ if and only if $[a]=[1]$ or $[a]=[p-1]$
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5
Why is this joke funny? The circumference of a circle equals $2\pi r^2$.
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5
Solution of $x^2 = 2$ in $\mathbb{Q}_p$
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5
Notatebility of Uncountable Sets
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5
Minimum distance of a binary linear code
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