Question

Roots of polynomial irreducible over the rationals

score 259 · Answer 1 · 2026-03-26 12:07:48

259

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Roots of polynomial irreducible over the rationals

Published on 26 Mar 2026 - 12:07

score 242 · Answer 2 · 2026-03-25 23:35:33

242

Views

Sixth grade math (number related) problem

Published on 25 Mar 2026 - 23:35

score 189 · Answer 3 · 2019-01-20 10:32:03

189

Views

How can an convergent series of rational numbers result in a irrational number?

Published on 20 Jan 2019 - 10:32

score 97 · Answer 4 · 2019-01-20 11:07:39

97

Views

Can nth root of 2 be a rational number for any natural number n > 1?

Published on 20 Jan 2019 - 11:07

score 531 · Answer 5 · 2026-03-26 22:32:56

531

Views

Cardinality of set of sequences from $\mathbb{Q}$ that converge to $0$

Published on 26 Mar 2026 - 22:32

score 988 · Answer 6 · 2026-03-26 12:37:17

988

Views

Prove or disprove that there is a rational number $x$ and an irrational number $y$ such that $x^y$ is irrational.

Published on 26 Mar 2026 - 12:37

score 141 · Answer 7 · 2026-03-26 13:51:05

141

Views

How to show that $\mathbb{Q}$ and $\mathbb{Q}^2$ are elementarily equivalent?

Published on 26 Mar 2026 - 13:51

score 1.7k · Answer 8 · 2026-03-25 15:53:02

1.7k

Views

Can the product of two rational numbers be an irrational number? (Kindly see the example in description)

Published on 25 Mar 2026 - 15:53

score 98 · Answer 9 · 2019-01-21 22:05:44

98

Views

Alternative solution to a problem involving an enumeration of rationals

Published on 21 Jan 2019 - 22:05

score 91 · Answer 10 · 2019-01-24 04:23:23

91

Views

How can I prove that no limit exists for this function over this particular interval?

Published on 24 Jan 2019 - 4:23

score 1.1k · Answer 11 · 2026-03-27 16:09:08

1.1k

Views

Contrapositive proof: If $H$ and $K$ are nontrivial subgroups of $\Bbb Q$, then $H\cap K$ is also nontrivial.

Published on 27 Mar 2026 - 16:09

score 1k · Answer 12 · 2019-01-24 16:32:41

1k

Views

bijection between $\mathbb{Q}$ and $\mathbb{N}$ that preserve the order.

Published on 24 Jan 2019 - 16:32

score 105 · Answer 13 · 2026-03-27 06:09:11

105

Views

If x,y and z are positive integers and $\frac 1x + \frac 1y = \frac 1z$ then $\sqrt{x^2+y^2+z^2}$ is rational.

Published on 27 Mar 2026 - 6:09

score 1.6k · Answer 14 · 2026-03-27 08:41:22

1.6k

Views

A well-defined map from rational numbers to integers

Published on 27 Mar 2026 - 8:41

score 223 · Answer 15 · 2019-01-26 10:57:44

223

Views

simple question : sequential criterion for continuity

Published on 26 Jan 2019 - 10:57

List Question

Roots of polynomial irreducible over the rationals

Sixth grade math (number related) problem

How can an convergent series of rational numbers result in a irrational number?

Can nth root of 2 be a rational number for any natural number n > 1?

Cardinality of set of sequences from $\mathbb{Q}$ that converge to $0$

Prove or disprove that there is a rational number $x$ and an irrational number $y$ such that $x^y$ is irrational.

How to show that $\mathbb{Q}$ and $\mathbb{Q}^2$ are elementarily equivalent?

Can the product of two rational numbers be an irrational number? (Kindly see the example in description)

Alternative solution to a problem involving an enumeration of rationals

How can I prove that no limit exists for this function over this particular interval?

Contrapositive proof: If $H$ and $K$ are nontrivial subgroups of $\Bbb Q$, then $H\cap K$ is also nontrivial.

bijection between $\mathbb{Q}$ and $\mathbb{N}$ that preserve the order.

If x,y and z are positive integers and $\frac 1x + \frac 1y = \frac 1z$ then $\sqrt{x^2+y^2+z^2}$ is rational.

A well-defined map from rational numbers to integers

simple question : sequential criterion for continuity

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