Question

Let's give a bijection between $ \{ x \in \mathbb{R}: 2 \ge x \ge 1 \} $ and $\mathbb{R} $

score 32 · Answer 1 · 2018-04-18 11:47:25

32

Views

Let's give a bijection between $ \{ x \in \mathbb{R}: 2 \ge x \ge 1 \} $ and $\mathbb{R} $

Published on 18 Apr 2018 - 11:47

score 54 · Answer 2 · 2026-03-25 03:03:55

54

Views

Sum of subsets of N i.i.d Bernoulli trials

Published on 25 Mar 2026 - 3:03

score 730 · Answer 3 · 2018-04-18 18:27:49

730

Views

Is this piecewise function bijective

Published on 18 Apr 2018 - 18:27

score 52 · Answer 4 · 2018-04-18 23:59:57

52

Views

Combinations with repetitions, is my logic correct?

Published on 18 Apr 2018 - 23:59

score 580 · Answer 5 · 2026-03-25 14:18:44

580

Views

Floor function proof using division algorithm

Published on 25 Mar 2026 - 14:18

score 237 · Answer 6 · 2026-03-28 04:35:08

237

Views

How to calculate sum over set of vectors $\sum\limits_{\vec q\in E}f(\vec q)$?

Published on 28 Mar 2026 - 4:35

score 600 · Answer 7 · 2018-04-19 06:53:16

600

Views

Discrete mathematic problem to evaluate statement is true

Published on 19 Apr 2018 - 6:53

score 77 · Answer 8 · 2026-03-26 19:09:58

77

Views

Finding errors in a proof that $\langle x,a\rangle\to|a|^2$ as $x$ approaches $a$

Published on 26 Mar 2026 - 19:09

score 123 · Answer 9 · 2026-03-26 22:20:02

123

Views

Algorithm for particular solution in non homogeous recurrence relation

Published on 26 Mar 2026 - 22:20

score 124 · Answer 10 · 2026-04-01 02:35:56

124

Views

How do you know when you're done with a proof by induction?

Published on 01 Apr 2026 - 2:35

score 97 · Answer 11 · 2026-03-25 00:07:54

97

Views

How can I prove these quantifier problem? $\neg\forall x P(x) \iff \exists x \neg P(x)$

Published on 25 Mar 2026 - 0:07

score 46 · Answer 12 · 2018-04-19 17:43:26

46

Views

Tiling a rectangle with a single polyomino

Published on 19 Apr 2018 - 17:43

score 644 · Answer 13 · 2018-04-19 18:29:48

644

Views

What is the probability of the following event: given a five digit number x, the the sum of the digits of x is equal to 9.

Published on 19 Apr 2018 - 18:29

score 342 · Answer 14 · 2026-03-27 12:08:06

342

Views

What is discrete mathematics based on?

Published on 27 Mar 2026 - 12:08

score 197 · Answer 15 · 2026-03-26 09:42:29

197

Views

Find the last $3$ digits of $13^{1201}$.

Published on 26 Mar 2026 - 9:42

List Question

Let's give a bijection between $ \{ x \in \mathbb{R}: 2 \ge x \ge 1 \} $ and $\mathbb{R} $

Sum of subsets of N i.i.d Bernoulli trials

Is this piecewise function bijective

Combinations with repetitions, is my logic correct?

Floor function proof using division algorithm

How to calculate sum over set of vectors $\sum\limits_{\vec q\in E}f(\vec q)$?

Discrete mathematic problem to evaluate statement is true

Finding errors in a proof that $\langle x,a\rangle\to|a|^2$ as $x$ approaches $a$

Algorithm for particular solution in non homogeous recurrence relation

How do you know when you're done with a proof by induction?

How can I prove these quantifier problem? $\neg\forall x P(x) \iff \exists x \neg P(x)$

Tiling a rectangle with a single polyomino

What is the probability of the following event: given a five digit number x, the the sum of the digits of x is equal to 9.

What is discrete mathematics based on?

Find the last $3$ digits of $13^{1201}$.

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