List questions from proof-writing

Published on 12 Apr 2026 - 10:10

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Is this proof on the Sylow 5-subgroups of G 100% correct?

Published on 16 Apr 2026 - 11:03

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Assume $X,Y \subset \Bbb R$ and both have the Bolzano-Weierstrass Property. Prove that $X \cup Y$ has the Bolzano-Weierstrass Property.

Published on 21 Apr 2026 - 20:32

30

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Is this proof on absolute value ok?

Published on 13 Apr 2026 - 9:54

28

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Simple proof involving integers

Published on 14 Apr 2026 - 22:37

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A proof involving inequality

Published on 11 Apr 2026 - 17:29

138

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Proving $\cup_{j\in J} A_j$ is connected.

Published on 22 Apr 2026 - 1:24

259

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Proof of König - Egerváry theorem.

Published on 10 Apr 2026 - 0:05

45

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Simple proof on set difference

Published on 10 Apr 2026 - 15:26

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Proving $\overline{A}$ is connected

Published on 22 Apr 2026 - 1:13

120

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Prove a summation equals 1

Published on 13 Apr 2026 - 19:06

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product of odd numbers is odd question

Published on 11 Apr 2026 - 20:18

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Proving this sequence is unbounded

Published on 16 Apr 2026 - 4:55

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Prove that $\mathbb{R}^2\setminus E$ is path-connected

Published on 12 Apr 2026 - 16:00

426

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How can you prove that $1.05^{50} < 100$ without a calculator?

Published on 24 Mar 2026 - 22:01

List Question

$n^2+n$ is even

Is this proof on the Sylow 5-subgroups of G 100% correct?

Assume $X,Y \subset \Bbb R$ and both have the Bolzano-Weierstrass Property. Prove that $X \cup Y$ has the Bolzano-Weierstrass Property.

Is this proof on absolute value ok?

Simple proof involving integers

A proof involving inequality

Proving $\cup_{j\in J} A_j$ is connected.

Proof of König - Egerváry theorem.

Simple proof on set difference

Proving $\overline{A}$ is connected

Prove a summation equals 1

product of odd numbers is odd question

Proving this sequence is unbounded

Prove that $\mathbb{R}^2\setminus E$ is path-connected

How can you prove that $1.05^{50} < 100$ without a calculator?

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