Question

For every $\epsilon\gt 0$, $|a-b|<\epsilon $ ,then b=a .

score 836 · Answer 1 · 2026-04-16 05:47:26

836

Views

For every $\epsilon\gt 0$, $|a-b|<\epsilon $ ,then b=a .

Published on 16 Apr 2026 - 5:47

score 85 · Answer 2 · 2026-04-10 23:29:50

85

Views

Mathematical proof regarding angle mirroring

Published on 10 Apr 2026 - 23:29

score 121 · Answer 3 · 2026-04-15 19:10:24

121

Views

Proving that the inverse exists in the given set to verify subgroup

Published on 15 Apr 2026 - 19:10

score 140 · Answer 4 · 2026-04-16 21:33:01

140

Views

How to prove that function $f(p)= \frac{1}{(p^2 - 1)} \sum_{q=3}^p \frac{q^2-3}{q}[q\text{ is prime}]$ is less than 0.3 for all $p$?

Published on 16 Apr 2026 - 21:33

score 808 · Answer 5 · 2026-04-16 15:16:32

808

Views

Connected Graph Proofs

Published on 16 Apr 2026 - 15:16

score 150 · Answer 6 · 2026-04-16 16:33:58

150

Views

Suppose that $T$ is the smallest positive integer satisfying $m^{T}\equiv \pmod {pq}$. Prove that $T\mid(p-1)(q-1)$.

Published on 16 Apr 2026 - 16:33

score 23 · Answer 7 · 2026-04-14 11:40:33

23

Views

Do all natural numbers exist on these three lines?

Published on 14 Apr 2026 - 11:40

score 53 · Answer 8 · 2026-04-15 18:26:43

53

Views

Disprove that for all primes $p$ if $a_{p-2}a_{p-3}...a_{2}a_{1}a_{0}$ is a multiple of $p$ then...

Published on 15 Apr 2026 - 18:26

score 54 · Answer 9 · 2026-04-16 17:14:24

54

Views

Prove that if $\alpha \subseteq \mathbb{R}$ is ideal then $\alpha = \{0\}$ or $\alpha = \mathbb{R}$

Published on 16 Apr 2026 - 17:14

score 171 · Answer 10 · 2026-04-12 07:36:48

171

Views

Theorems & Proof Corrections [discrete mathematics]

Published on 12 Apr 2026 - 7:36

score 120 · Answer 11 · 2026-04-26 06:33:15

120

Views

Finding the numerical listed string to the center algorithm.

Published on 26 Apr 2026 - 6:33

score 571 · Answer 12 · 2026-03-30 23:22:57

571

Views

Help to prove that: if m ≡ n (mod a) then mb ≡ nb (mod ab)

Published on 30 Mar 2026 - 23:22

score 102 · Answer 13 · 2026-04-14 04:17:43

102

Views

On a conjecture that $\sum_{i=1}\limits^na_ip_i = 1\Rightarrow \exists\big(\sum_{i=1}\limits^na_i=0\big)$ (about primes)

Published on 14 Apr 2026 - 4:17

score 636 · Answer 14 · 2026-04-14 05:23:36

636

Views

Prove that if $|z+w|=|z-w|$ then $z\overline{w}$ is purely imaginary.

Published on 14 Apr 2026 - 5:23

score 133 · Answer 15 · 2026-04-10 09:22:10

133

Views

$\omega +1 $ is not isomorphic to $\omega$ (in the well-ordering by $\varepsilon$)

Published on 10 Apr 2026 - 9:22

List Question

For every $\epsilon\gt 0$, $|a-b|<\epsilon $ ,then b=a .

Mathematical proof regarding angle mirroring

Proving that the inverse exists in the given set to verify subgroup

How to prove that function $f(p)= \frac{1}{(p^2 - 1)} \sum_{q=3}^p \frac{q^2-3}{q}[q\text{ is prime}]$ is less than 0.3 for all $p$?

Connected Graph Proofs

Suppose that $T$ is the smallest positive integer satisfying $m^{T}\equiv \pmod {pq}$. Prove that $T\mid(p-1)(q-1)$.

Do all natural numbers exist on these three lines?

Disprove that for all primes $p$ if $a_{p-2}a_{p-3}...a_{2}a_{1}a_{0}$ is a multiple of $p$ then...

Prove that if $\alpha \subseteq \mathbb{R}$ is ideal then $\alpha = \{0\}$ or $\alpha = \mathbb{R}$

Theorems & Proof Corrections [discrete mathematics]

Finding the numerical listed string to the center algorithm.

Help to prove that: if m ≡ n (mod a) then mb ≡ nb (mod ab)

On a conjecture that $\sum_{i=1}\limits^na_ip_i = 1\Rightarrow \exists\big(\sum_{i=1}\limits^na_i=0\big)$ (about primes)

Prove that if $|z+w|=|z-w|$ then $z\overline{w}$ is purely imaginary.

$\omega +1 $ is not isomorphic to $\omega$ (in the well-ordering by $\varepsilon$)

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