Question

An infinite division and balls problem

score 265 · Answer 1 · 2026-05-10 14:50:22

265

Views

An infinite division and balls problem

Published on 10 May 2026 - 14:50

score 486 · Answer 2 · 2026-04-12 09:16:53

486

Views

Set of natural and rational numbers

Published on 12 Apr 2026 - 9:16

score 171 · Answer 3 · 2026-04-11 06:15:54

171

Views

Does the closure of natural numbers under addition need to be proven or is it an axiom?

Published on 11 Apr 2026 - 6:15

score 50 · Answer 4 · 2026-04-12 11:55:36

50

Views

Find the zeros in integer multiplication

Published on 12 Apr 2026 - 11:55

score 53 · Answer 5 · 2026-04-16 08:38:54

53

Views

Prove that if $\\gcd(a,b)=1$ then $a\mathbb{N}\cap b\mathbb{N}=(ab)\mathbb{N}.$

Published on 16 Apr 2026 - 8:38

score 94 · Answer 6 · 2026-05-10 19:25:21

94

Views

How does the well-orderedness of the set of natural numbers follow assuming the inductive-set definition of natural numbers

Published on 10 May 2026 - 19:25

score 143 · Answer 7 · 2026-04-13 10:12:36

143

Views

Numbers that are different repeated digits in different bases

Published on 13 Apr 2026 - 10:12

score 714 · Answer 8 · 2026-04-12 20:11:59

714

Views

Can $\mathbb{N}$ be an element of $\mathbb{R}$

Published on 12 Apr 2026 - 20:11

score 41 · Answer 9 · 2026-04-13 16:42:26

41

Views

A sequence of numbers easily computable with no apparent order and with defined inverse function

Published on 13 Apr 2026 - 16:42

score 50 · Answer 10 · 2026-04-09 08:45:06

50

Views

Natural Number Object and multiplicity of its points

Published on 09 Apr 2026 - 8:45

score 4k · Answer 11 · 2026-04-12 04:39:16

4k

Views

Prove that the product of three consecutive natural numbers is divisible by 6

Published on 12 Apr 2026 - 4:39

score 45 · Answer 12 · 2026-04-17 11:34:00

45

Views

Injective map $\phi _k :P_k (\mathbb{N})\rightarrow \mathbb{N}^k$

Published on 17 Apr 2026 - 11:34

score 234 · Answer 13 · 2026-04-17 07:53:04

234

Views

Show on $\mathbb{N}$ there are $2^{\aleph_0}$ nonisomorphic linear orders.

Published on 17 Apr 2026 - 7:53

score 778 · Answer 14 · 2026-05-10 18:28:06

778

Views

Prove set of primes is equal to set of natural numbers

Published on 10 May 2026 - 18:28

score 30 · Answer 15 · 2026-04-17 03:42:14

30

Views

Determine the elements of the set $\{ n \in \mathbb{N} :( \exists x,y \in \mathbb{N} )(n = 2x+3y) \}.$

Published on 17 Apr 2026 - 3:42

List Question

An infinite division and balls problem

Set of natural and rational numbers

Does the closure of natural numbers under addition need to be proven or is it an axiom?

Find the zeros in integer multiplication

Prove that if $\\gcd(a,b)=1$ then $a\mathbb{N}\cap b\mathbb{N}=(ab)\mathbb{N}.$

How does the well-orderedness of the set of natural numbers follow assuming the inductive-set definition of natural numbers

Numbers that are different repeated digits in different bases

Can $\mathbb{N}$ be an element of $\mathbb{R}$

A sequence of numbers easily computable with no apparent order and with defined inverse function

Natural Number Object and multiplicity of its points

Prove that the product of three consecutive natural numbers is divisible by 6

Injective map $\phi _k :P_k (\mathbb{N})\rightarrow \mathbb{N}^k$

Show on $\mathbb{N}$ there are $2^{\aleph_0}$ nonisomorphic linear orders.

Prove set of primes is equal to set of natural numbers

Determine the elements of the set $\{ n \in \mathbb{N} :( \exists x,y \in \mathbb{N} )(n = 2x+3y) \}.$

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