Question

Euclid's proof (Variations)

score 89 · Answer 1 · 2023-11-25 02:48:21

89

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Euclid's proof (Variations)

Published on 25 Nov 2023 - 2:48

score 36 · Answer 2 · 2023-11-25 19:24:25

36

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Another clock synchronisation problem

Published on 25 Nov 2023 - 19:24

score 56 · Answer 3 · 2026-03-31 14:32:26

56

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closed-form expression for solution of inequality $ \left\lceil \frac{a}{x} \right\rceil > b$

Published on 31 Mar 2026 - 14:32

score 79 · Answer 4 · 2026-04-06 01:22:34

79

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Why is $(-3)^\frac{2}{5}$ not real?

Published on 06 Apr 2026 - 1:22

score 101 · Answer 5 · 2026-04-01 15:59:03

101

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Why can't $\frac{1}{\not0}\cdot \frac{\not0}{1}=1$?

Published on 01 Apr 2026 - 15:59

score 125 · Answer 6 · 2026-03-25 03:01:19

125

Views

Prove that divisibility between two natural numbers is not definable in arithmetic

Published on 25 Mar 2026 - 3:01

score 139 · Answer 7 · 2026-03-31 19:16:50

139

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Interpretation of 1089-number trick in terms of symmetric group action on Ext-group?

Published on 31 Mar 2026 - 19:16

score 62 · Answer 8 · 2026-03-28 20:22:23

62

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Time it takes for one train to pass by the front of another

Published on 28 Mar 2026 - 20:22

score 66 · Answer 9 · 2026-04-01 16:00:11

66

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How to logically represent a smaller number being divided by a large number on a number line?

Published on 01 Apr 2026 - 16:00

score 53 · Answer 10 · 2026-03-30 17:07:37

53

Views

Synonym for both addition and subtraction

Published on 30 Mar 2026 - 17:07

score 125 · Answer 11 · 2026-04-04 21:18:14

125

Views

define $a@b=\frac{b^2+3a}{a+33b},$ calculate (1@2@...@100)×3303

Published on 04 Apr 2026 - 21:18

score 85 · Answer 12 · 2023-12-07 02:20:18

85

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Formula to figure out who owes who how much money for shared expenses

Published on 07 Dec 2023 - 2:20

score 46 · Answer 13 · 2023-12-08 19:15:04

46

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Why do we use division to find the value of 1 item?

Published on 08 Dec 2023 - 19:15

score 164 · Answer 14 · 2023-12-09 00:26:57

164

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Let $k$ divides both $m+2n$ and $3m+4n$, prove $k$ also divides $m$ and $2n$

Published on 09 Dec 2023 - 0:26

score 118 · Answer 15 · 2026-04-03 03:21:19

118

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Example of a sentence of the language $\{+,0,S\}$, unprovable in Q1--Q5 but provable in Q?

Published on 03 Apr 2026 - 3:21

List Question

Euclid's proof (Variations)

Another clock synchronisation problem

closed-form expression for solution of inequality $ \left\lceil \frac{a}{x} \right\rceil > b$

Why is $(-3)^\frac{2}{5}$ not real?

Why can't $\frac{1}{\not0}\cdot \frac{\not0}{1}=1$?

Prove that divisibility between two natural numbers is not definable in arithmetic

Interpretation of 1089-number trick in terms of symmetric group action on Ext-group?

Time it takes for one train to pass by the front of another

How to logically represent a smaller number being divided by a large number on a number line?

Synonym for both addition and subtraction

define $a@b=\frac{b^2+3a}{a+33b},$ calculate (1@2@...@100)×3303

Formula to figure out who owes who how much money for shared expenses

Why do we use division to find the value of 1 item?

Let $k$ divides both $m+2n$ and $3m+4n$, prove $k$ also divides $m$ and $2n$

Example of a sentence of the language $\{+,0,S\}$, unprovable in Q1--Q5 but provable in Q?

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