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Characterizing $(\mathbb{Z}, <)$ up to isomorphism

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#logic #first-order-logic #order-theory #integers
34
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Proving a piecewise-defined map $\mathbb Z\to\mathbb N$ is onto

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#functions #contest-math #integers
2.7k
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Specific example of infinite series that converges to $0$

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#real-analysis #calculus #sequences-and-series #convergence-divergence #integers
49
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Index of two primitive roots modulo $m$

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#number-theory #elementary-number-theory #integers #primitive-roots
164
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Isometries and Symmetries of the set $\mathbb{Z}^2$ as a subset of $\mathbb{R}^2$

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#real-numbers #integers #symmetry #isometry #orthogonal-matrices
929
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math question/puzzle: Tokens Taken

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#probability #integers
28
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Formula to Find $k$ to put $\frac nm$ in between a Range

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#inequality #integers
169
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Proving Proposition 4.1.8. from Terence Tao's Analysis I

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#self-learning #solution-verification #integers #natural-numbers
63
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Greatest $n$ is possible? in $10^n$ as a divisor of $1995!$

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#divisibility #factorial #integers
45
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Is relation "xRy iff x^2 + y^2 is odd or y < 0" correct?

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#discrete-mathematics #relations #education #integers #quantifiers
54
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The complete set of R on the subset of Z when y < 0

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#discrete-mathematics #relations #education #integers #quantifiers
116
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When can a sum of 3 identical squares be written as a sum of 3 non-identical squares?

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#integers #sums-of-squares
420
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Algorithm for computing div and mod

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#number-theory #discrete-mathematics #algorithms #modular-arithmetic #integers
67
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How many consecutive days of minimum period of 14 days exist in a period of 214 days?

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#combinatorics #integers
53
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Floor, ceil problem

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#integers #ceiling-and-floor-functions #pi

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