Question

Is it possible to put pi into terms of rationals

score 46 · Answer 1 · 2026-03-27 21:20:36

46

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Is it possible to put pi into terms of rationals

Published on 27 Mar 2026 - 21:20

score 76 · Answer 2 · 2020-05-03 19:50:52

76

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A name for finite rational numbers

Published on 03 May 2020 - 19:50

score 43 · Answer 3 · 2020-05-04 19:58:34

43

Views

Is there any bound to how quickly or slowly an enumeration of the rationals diverges?

Published on 04 May 2020 - 19:58

score 139 · Answer 4 · 2026-03-28 21:57:12

139

Views

How do I extract a square root in a field of p-adic numbers?

Published on 28 Mar 2026 - 21:57

score 81 · Answer 5 · 2020-05-08 17:15:18

81

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I've got $R=\{a/b \in\Bbb Q\mid b\, \text{ is odd }\}$ and I have to prove that $R$ is a subgroup of $(\Bbb Q,+)$

Published on 08 May 2020 - 17:15

score 142 · Answer 6 · 2026-03-27 14:11:09

142

Views

A proof that $\mathbb{Q}^+$ is not finitely generated. Is it correct?

Published on 27 Mar 2026 - 14:11

score 81 · Answer 7 · 2020-05-11 19:01:31

81

Views

Notation question, what is $\mathbb{Q}^\times$?

Published on 11 May 2020 - 19:01

score 256 · Answer 8 · 2026-03-29 10:19:22

Prove that for an integer n larger than or equal to 2, the period for the decimal expression of the rational number $\frac{1}{n}$ is at most n -1.

score 49 · Answer 9 · 2026-03-30 03:54:10

49

Views

Irreducibility of polynomials degree $3$

Published on 30 Mar 2026 - 3:54

score 190 · Answer 10 · 2026-03-30 00:23:01

190

Views

Terminology: Product of numerator and denominator of rational number

Published on 30 Mar 2026 - 0:23

score 737 · Answer 11 · 2026-02-23 10:22:51

737

Views

Question about Rational numbers and prime numbers

Published on 23 Feb 2026 - 10:22

score 46 · Answer 12 · 2020-05-19 21:00:40

46

Views

Prove that in $A$ with $m(A)>0$, $\exists x,y\in A$ s.t. $x\neq y$ and $x-y\in\mathbb{Q}$

Published on 19 May 2020 - 21:00

score 41 · Answer 13 · 2020-05-19 23:56:04

41

Views

Does the below-quoted fact follow from the countable subadditivity property of probability measure $\mathbb{P}$?

Published on 19 May 2020 - 23:56

score 314 · Answer 14 · 2020-05-23 02:04:17

314

Views

Bad Proof? Between any two reals is a rational number

Published on 23 May 2020 - 2:04

score 77 · Answer 15 · 2020-05-24 20:15:03

77

Views

Show that the following theorem is true or false: If $x\notin\Bbb Q$ then $x^2\notin\Bbb Q$.

Published on 24 May 2020 - 20:15

List Question

Is it possible to put pi into terms of rationals

A name for finite rational numbers

Is there any bound to how quickly or slowly an enumeration of the rationals diverges?

How do I extract a square root in a field of p-adic numbers?

I've got $R=\{a/b \in\Bbb Q\mid b\, \text{ is odd }\}$ and I have to prove that $R$ is a subgroup of $(\Bbb Q,+)$

A proof that $\mathbb{Q}^+$ is not finitely generated. Is it correct?

Notation question, what is $\mathbb{Q}^\times$?

Prove that for an integer n larger than or equal to 2, the period for the decimal expression of the rational number $\frac{1}{n}$ is at most n -1.

Irreducibility of polynomials degree $3$

Terminology: Product of numerator and denominator of rational number

Question about Rational numbers and prime numbers

Prove that in $A$ with $m(A)>0$, $\exists x,y\in A$ s.t. $x\neq y$ and $x-y\in\mathbb{Q}$

Does the below-quoted fact follow from the countable subadditivity property of probability measure $\mathbb{P}$?

Bad Proof? Between any two reals is a rational number

Show that the following theorem is true or false: If $x\notin\Bbb Q$ then $x^2\notin\Bbb Q$.

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