Question

Function that is bijective from $(0,1)$ to $\mathbb R$

score 359 · Answer 1 · 2018-09-02 16:06:06

359

Views

Function that is bijective from $(0,1)$ to $\mathbb R$

Published on 02 Sep 2018 - 16:06

score 54 · Answer 2 · 2026-04-08 12:32:07

54

Views

An algorithm to convert a number to a decimal

Published on 08 Apr 2026 - 12:32

score 824 · Answer 3 · 2026-03-25 06:06:27

824

Views

Every graph $G$ with $d(G) \ge 4k$ has a $(k + 1)$-connected subgraph $H$ such that $\epsilon (H) > \epsilon(G) − k$.

Published on 25 Mar 2026 - 6:06

score 78 · Answer 4 · 2018-09-02 18:50:23

78

Views

Proof of 1-1 under an interval (0,1)

Published on 02 Sep 2018 - 18:50

score 78 · Answer 5 · 2026-03-25 09:39:46

78

Views

Is there a general mathematical method that determines whether any sequence of natural numbers is generated by a particular mathematical law?

Published on 25 Mar 2026 - 9:39

score 84 · Answer 6 · 2018-09-03 06:57:20

Ways to distribute 15 distinct kinds of toys with at least 10 of each kind to 10 kids so that each kid gets at most one kind of each toy?

score 128 · Answer 7 · 2018-09-03 12:47:36

128

Views

Prove $\frac{b-a+1}{ab} \leq \sum_{i=a}^b \frac{1}{i^2} \leq \frac{b-a+1}{(a-1)b}$

Published on 03 Sep 2018 - 12:47

score 244 · Answer 8 · 2026-04-08 02:44:42

244

Views

History and connecting math to real world

Published on 08 Apr 2026 - 2:44

score 97 · Answer 9 · 2026-03-28 04:01:52

97

Views

Induction. Am I missing something or is there a mistake in the question?

Published on 28 Mar 2026 - 4:01

score 3k · Answer 10 · 2018-09-03 19:02:47

3k

Views

Proving the Complementation Law for sets

Published on 03 Sep 2018 - 19:02

score 71 · Answer 11 · 2026-03-22 05:39:48

71

Views

Show that $\exists a, b$ where $\gcd(a,b) = d$ and $\operatorname{lcm}(a,b) = e$ iff $d \mid e$

Published on 22 Mar 2026 - 5:39

score 7.8k · Answer 12 · 2018-09-04 00:04:47

7.8k

Views

$f(x)=x^3$ is convex nor concave without to derivate

Published on 04 Sep 2018 - 0:04

score 62 · Answer 13 · 2018-09-04 03:02:14

62

Views

About the question of Truth Table

Published on 04 Sep 2018 - 3:02

score 278 · Answer 14 · 2026-04-01 20:20:26

278

Views

To construct a graph using path graph $P_4$

Published on 01 Apr 2026 - 20:20

score 104 · Answer 15 · 2018-09-04 12:48:02

104

Views

Are $(\exists x)(\forall y)3x^2y-xy+5y=7$ and $(\forall y)(\exists x)3x^2y-xy+5y=7$ true or false

Published on 04 Sep 2018 - 12:48

List Question

Function that is bijective from $(0,1)$ to $\mathbb R$

An algorithm to convert a number to a decimal

Every graph $G$ with $d(G) \ge 4k$ has a $(k + 1)$-connected subgraph $H$ such that $\epsilon (H) > \epsilon(G) − k$.

Proof of 1-1 under an interval (0,1)

Is there a general mathematical method that determines whether any sequence of natural numbers is generated by a particular mathematical law?

Ways to distribute 15 distinct kinds of toys with at least 10 of each kind to 10 kids so that each kid gets at most one kind of each toy?

Prove $\frac{b-a+1}{ab} \leq \sum_{i=a}^b \frac{1}{i^2} \leq \frac{b-a+1}{(a-1)b}$

History and connecting math to real world

Induction. Am I missing something or is there a mistake in the question?

Proving the Complementation Law for sets

Show that $\exists a, b$ where $\gcd(a,b) = d$ and $\operatorname{lcm}(a,b) = e$ iff $d \mid e$

$f(x)=x^3$ is convex nor concave without to derivate

About the question of Truth Table

To construct a graph using path graph $P_4$

Are $(\exists x)(\forall y)3x^2y-xy+5y=7$ and $(\forall y)(\exists x)3x^2y-xy+5y=7$ true or false

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