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How to calculate the sum of the first n natural numbers?

score 318 · Answer 1 · 2020-04-28 17:45:04

318

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How to calculate the sum of the first n natural numbers?

Published on 28 Apr 2020 - 17:45

score 94 · Answer 2 · 2020-04-29 02:13:25

94

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I have a question on Lebesgue Iterated Integrals with the Counting Measure

Published on 29 Apr 2020 - 2:13

score 411 · Answer 3 · 2026-03-26 09:42:47

411

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Find the maximum value $LCM$ pair in the sequence where $LCM(a, b)$ means the smallest positive integer that is divisible by both.

Published on 26 Mar 2026 - 9:42

score 242 · Answer 4 · 2026-03-26 10:58:16

242

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Confusion in well ordering principle

Published on 26 Mar 2026 - 10:58

score 48 · Answer 5 · 2026-03-27 18:28:06

48

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Given the binary operation $xy=x^2+4xy+y^2$ show that $a1 \in \mathbb{N}$ has infinitely many solutions, where $a$ is irrational.

Published on 27 Mar 2026 - 18:28

score 49 · Answer 6 · 2026-03-27 23:41:02

49

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Why some mathematicians axiomatized number sets?

Published on 27 Mar 2026 - 23:41

score 50 · Answer 7 · 2020-05-06 14:14:44

50

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Sum of real numbers equal to integer number

Published on 06 May 2020 - 14:14

score 77 · Answer 8 · 2026-03-27 07:50:37

77

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Conjecture: There are infinitely many $N \in \Bbb{N}$ such that $p$ a prime $p \leq \sqrt{N+1} \implies p \mid N$?

Published on 27 Mar 2026 - 7:50

score 325 · Answer 9 · 2026-03-26 17:33:36

325

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Exercise 2.2.1 in Analysis by Terence Tao Induction Proof of Addition Associative Law Natural Numbers

Published on 26 Mar 2026 - 17:33

score 134 · Answer 10 · 2020-05-12 20:52:37

134

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Metric in which consecutive primes have equivalent gaps?

Published on 12 May 2020 - 20:52

score 183 · Answer 11 · 2020-05-13 19:13:47

183

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Double Induction Example

Published on 13 May 2020 - 19:13

score 81 · Answer 12 · 2020-05-14 16:56:17

81

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Define a geometry based on a pseudometric in which the distance between distinct primes is zero?

Published on 14 May 2020 - 16:56

score 944 · Answer 13 · 2020-05-15 05:01:56

944

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Bijection of the set of natural numbers onto the set of integers.

Published on 15 May 2020 - 5:01

score 63 · Answer 14 · 2020-05-16 14:09:55

63

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Prove for all positive integers $a$ will never reach $2^b$

Published on 16 May 2020 - 14:09

score 140 · Answer 15 · 2020-05-17 04:31:45

140

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How Can You Prove the Completeness of $\mathbb{N}$?

Published on 17 May 2020 - 4:31

List Question

How to calculate the sum of the first n natural numbers?

I have a question on Lebesgue Iterated Integrals with the Counting Measure

Find the maximum value $LCM$ pair in the sequence where $LCM(a, b)$ means the smallest positive integer that is divisible by both.

Confusion in well ordering principle

Given the binary operation $xy=x^2+4xy+y^2$ show that $a1 \in \mathbb{N}$ has infinitely many solutions, where $a$ is irrational.

Why some mathematicians axiomatized number sets?

Sum of real numbers equal to integer number

Conjecture: There are infinitely many $N \in \Bbb{N}$ such that $p$ a prime $p \leq \sqrt{N+1} \implies p \mid N$?

Exercise 2.2.1 in Analysis by Terence Tao Induction Proof of Addition Associative Law Natural Numbers

Metric in which consecutive primes have equivalent gaps?

Double Induction Example

Define a geometry based on a pseudometric in which the distance between distinct primes is zero?

Bijection of the set of natural numbers onto the set of integers.

Prove for all positive integers $a$ will never reach $2^b$

How Can You Prove the Completeness of $\mathbb{N}$?

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