List questions from rational-numbers

Published on 04 Apr 2026 - 10:12

387

Views

The equation $\{x^2\} + \{x\}=1$ has no solution over positive rationals

Published on 28 Mar 2026 - 10:16

2.6k

Views

How to prove the power set of the rationals is uncountable?

Published on 12 Jun 2016 - 6:02

76

Views

Is LCM of rationals used in higher math?

Published on 24 Feb 2026 - 5:35

3.9k

Views

Visual representation of the fact that there are more irrational than rational numbers.

Published on 28 Mar 2026 - 1:07

4k

Views

What's the numerator and the denominator of a fraction called?

Published on 15 Jun 2016 - 18:23

174

Views

Countable set of number rational, prove with $\mathbb{Z}$.

Published on 15 Jun 2016 - 20:14

76

Views

Assume $r,s \in\mathbb{Q}$. Prove $\frac{r}{s},r-s \in\mathbb{Q}$

Published on 17 Jun 2016 - 0:59

135

Views

Show that $E \subset \Bbb Q$ is closed in $(\Bbb Q, d)$

Published on 04 Apr 2026 - 11:57

205

Views

Show that a subset $E$ $\subset \Bbb Q$ is not compact in $(\Bbb Q, d)$ and decide whether it is open or not

Published on 20 Jun 2016 - 8:21

95

Views

Non-constructive proofs for the rationality of a number

Published on 26 Mar 2026 - 21:54

345

Views

Prove the sum of squares of 3 rationals cannot be 7

Published on 26 Jun 2016 - 9:18

313

Views

Proof that Epicycloids are Algebraic Curves?

Published on 30 Mar 2026 - 12:45

35

Views

For $\forall m \in \mathbb{N}, m \ge 3$ there are m elements of S in arithmetic progression.

Published on 29 Mar 2026 - 13:29

147

Views

Prove that for rational $x$,$y$ and $\epsilon$ if $|x-y| \leq \epsilon$ , $ \forall \epsilon > 0$ then $x=y$

Published on 30 Jun 2016 - 5:33

List Question

Proving by contradiction (6/9)

The equation $\{x^2\} + \{x\}=1$ has no solution over positive rationals

How to prove the power set of the rationals is uncountable?

Is LCM of rationals used in higher math?

Visual representation of the fact that there are more irrational than rational numbers.

What's the numerator and the denominator of a fraction called?

Countable set of number rational, prove with $\mathbb{Z}$.

Assume $r,s \in\mathbb{Q}$. Prove $\frac{r}{s},r-s \in\mathbb{Q}$

Show that $E \subset \Bbb Q$ is closed in $(\Bbb Q, d)$

Show that a subset $E$ $\subset \Bbb Q$ is not compact in $(\Bbb Q, d)$ and decide whether it is open or not

Non-constructive proofs for the rationality of a number

Prove the sum of squares of 3 rationals cannot be 7

Proof that Epicycloids are Algebraic Curves?

For $\forall m \in \mathbb{N}, m \ge 3$ there are m elements of S in arithmetic progression.

Prove that for rational $x$,$y$ and $\epsilon$ if $|x-y| \leq \epsilon$ , $ \forall \epsilon > 0$ then $x=y$

Trending Questions

Popular # Hahtags

Popular Questions