List questions from rational-numbers

Published on 09 Sep 2015 - 0:44

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Equivalence classes and rational numbers

Published on 09 Sep 2015 - 1:55

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a dense set in (0,1)

Published on 03 Apr 2026 - 8:12

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Find the supremum and infimum of {x $\in$ [0,1]: x $\notin$ $\mathbb Q$}. Prove why your assertions are correct

Published on 03 Apr 2026 - 10:13

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Coloring rational numbers

Published on 28 Mar 2026 - 14:20

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Is it known whether ${\sqrt{2}}^{\sqrt{2}}$ is irrational?

Published on 26 Mar 2026 - 19:05

113

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The minimum cardinal of a geometrical set

Published on 13 Sep 2015 - 10:40

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Rationals $(\mathbb{Q},<)$ are isomorphic to a part of a finite partition

Published on 14 Sep 2015 - 19:39

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Why is $[0, 1] \cap \mathbb{Q}$ not compact in $\mathbb{Q}$?

Published on 15 Sep 2015 - 20:57

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What's an example of a number that is neither rational nor irrational?

Published on 26 Mar 2026 - 6:06

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What are some of the implications of $\pi + e$ being rational?

Published on 29 Mar 2026 - 22:33

107

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How to express $15.3\dot{9}$ in fractional form

Published on 02 Apr 2026 - 15:59

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Find all cluster points for the sequence $x_{n}$ = The $n$-th rational number

Published on 22 Sep 2015 - 12:53

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How Can I calculate this expression?

Published on 28 Mar 2026 - 14:25

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Length of digits before the period in decimal expansion for rational numbers

Published on 31 Mar 2026 - 7:08

List Question

Given a rational number produce a larger rational number

Equivalence classes and rational numbers

a dense set in (0,1)

Find the supremum and infimum of {x $\in$ [0,1]: x $\notin$ $\mathbb Q$}. Prove why your assertions are correct

Coloring rational numbers

Is it known whether ${\sqrt{2}}^{\sqrt{2}}$ is irrational?

The minimum cardinal of a geometrical set

Rationals $(\mathbb{Q},<)$ are isomorphic to a part of a finite partition

Why is $[0, 1] \cap \mathbb{Q}$ not compact in $\mathbb{Q}$?

What's an example of a number that is neither rational nor irrational?

What are some of the implications of $\pi + e$ being rational?

How to express $15.3\dot{9}$ in fractional form

Find all cluster points for the sequence $x_{n}$ = The $n$-th rational number

How Can I calculate this expression?

Length of digits before the period in decimal expansion for rational numbers

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